From a2a21622d37125dc4d1af69557f817414a0c8e3c Mon Sep 17 00:00:00 2001
From: GitHub Actions <actions@github.com>
Date: Tue, 31 Dec 2024 00:29:52 +0000
Subject: [PATCH] site deploy

Auto-generated via `{sandpaper}`
Source  : 3f43aebed7a5e2bc31f65ac1aa146fddc1f79697
Branch  : md-outputs
Author  : GitHub Actions <actions@github.com>
Time    : 2024-12-10 00:34:25 +0000
Message : markdown source builds

Auto-generated via `{sandpaper}`
Source  : ad785c46666ffb96033567107d228ab2c28aed8a
Branch  : main
Author  : Milan Malfait <38256462+milanmlft@users.noreply.github.com>
Time    : 2024-12-04 15:33:12 +0000
Message : Update 8 packages (#53)

Co-authored-by: milanmlft <milanmlft@users.noreply.github.com>
---
 01-rstudio-intro.html                    |  2 +-
 02-project-intro.html                    |  2 +-
 03-seeking-help.html                     |  8 +--
 04-data-structures-part1.html            | 32 ++++-----
 05-data-structures-part2.html            |  2 +-
 06-data-subsetting.html                  | 18 +++---
 08-plot-ggplot2.html                     | 14 ++--
 11-writing-data.html                     |  2 +-
 12-dplyr.html                            |  2 +-
 13-tidyr.html                            |  8 +--
 14-knitr-markdown.html                   | 10 +--
 15-wrap-up.html                          |  2 +-
 404.html                                 |  4 +-
 CODE_OF_CONDUCT.html                     |  2 +-
 LICENSE.html                             |  2 +-
 aio.html                                 | 82 ++++++++++++------------
 discuss.html                             |  2 +-
 images.html                              |  4 +-
 index.html                               |  4 +-
 instructor-notes.html                    |  4 +-
 instructor/01-rstudio-intro.html         |  2 +-
 instructor/02-project-intro.html         |  2 +-
 instructor/03-seeking-help.html          |  8 +--
 instructor/04-data-structures-part1.html | 32 ++++-----
 instructor/05-data-structures-part2.html |  2 +-
 instructor/06-data-subsetting.html       | 18 +++---
 instructor/08-plot-ggplot2.html          | 14 ++--
 instructor/11-writing-data.html          |  2 +-
 instructor/12-dplyr.html                 |  2 +-
 instructor/13-tidyr.html                 |  8 +--
 instructor/14-knitr-markdown.html        | 10 +--
 instructor/15-wrap-up.html               |  2 +-
 instructor/404.html                      |  4 +-
 instructor/CODE_OF_CONDUCT.html          |  2 +-
 instructor/LICENSE.html                  |  2 +-
 instructor/aio.html                      | 82 ++++++++++++------------
 instructor/discuss.html                  |  2 +-
 instructor/images.html                   |  4 +-
 instructor/index.html                    |  4 +-
 instructor/instructor-notes.html         |  4 +-
 instructor/key-points.html               |  4 +-
 instructor/profiles.html                 |  4 +-
 instructor/reference.html                |  2 +-
 instructor/statistics.html               |  2 +-
 key-points.html                          |  4 +-
 pkgdown.yml                              |  2 +-
 profiles.html                            |  4 +-
 reference.html                           |  2 +-
 statistics.html                          |  2 +-
 49 files changed, 219 insertions(+), 219 deletions(-)

diff --git a/01-rstudio-intro.html b/01-rstudio-intro.html
index cfd6871cb..2be943d6f 100644
--- a/01-rstudio-intro.html
+++ b/01-rstudio-intro.html
@@ -1443,7 +1443,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/01-rstudio-intro.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/02-project-intro.html b/02-project-intro.html
index 0abb585db..d318ff8c6 100644
--- a/02-project-intro.html
+++ b/02-project-intro.html
@@ -804,7 +804,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/02-project-intro.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/03-seeking-help.html b/03-seeking-help.html
index 927b8c148..028b88379 100644
--- a/03-seeking-help.html
+++ b/03-seeking-help.html
@@ -619,7 +619,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>c()</code> function creates a vector, in which all elements
 are of the same type. In the first case, the elements are numeric, in
@@ -649,7 +649,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>To look at the help for the <code>paste()</code> function, use:</p>
 <div class="codewrapper sourceCode" id="cb11">
@@ -758,7 +758,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The standard R function for reading tab-delimited files with a period
 decimal separator is read.delim(). You can also do this with
@@ -845,7 +845,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/03-seeking-help.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/04-data-structures-part1.html b/04-data-structures-part1.html
index bc3d540c6..b97ab1ce3 100644
--- a/04-data-structures-part1.html
+++ b/04-data-structures-part1.html
@@ -845,7 +845,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Discussion 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>By keeping everything in a column the same, we allow ourselves to
 make simple assumptions about our data; if you can interpret one entry
@@ -1071,7 +1071,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Tip 1.1
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Show the content of any variable by typing its name.</p>
 <div class="section level3">
@@ -1104,7 +1104,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Tip 1.2
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>In the chapter “Data types” we saw two functions that can show data
 types. One printed just a single word, the data type name. The other
@@ -1145,7 +1145,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Tip 1.3
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Scroll up to the section about the <a href="#the-type-hierarchy">type
 hierarchy</a> to review the available data types</p>
@@ -1160,7 +1160,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to Challenge 1.3
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <ul><li>Weight is expressed on a continuous scale (real numbers). The R data
 type for this is “double” (also known as “numeric”).</li>
@@ -1193,7 +1193,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Tip 1.4
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>Revisit the hierarchy of data types when two different data types are
 combined.</p>
@@ -1233,7 +1233,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Tip 1.5
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>The functions to convert data types start with <code>as.</code>. You
 can look for the function further up in the manuscript or use the
@@ -1424,7 +1424,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb92">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1648,7 +1648,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p>You get the names of an object by wrapping the object name inside
 <code>names(...)</code>. Similarly, you get the data type of the names
@@ -1692,7 +1692,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code><span><span class="va">letter_no</span> <span class="op">&lt;-</span> <span class="fl">1</span><span class="op">:</span><span class="fl">26</span>   <span class="co"># or seq(1,26)</span></span>
 <span><span class="fu">names</span><span class="op">(</span><span class="va">letter_no</span><span class="op">)</span> <span class="op">&lt;-</span> <span class="va">LETTERS</span></span>
@@ -1880,7 +1880,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Solution to Challenge 5
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb138">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2140,7 +2140,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Solution to Challenge 6
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <p>What do you think will be the result of
 <code>length(matrix_example)</code>?</p>
@@ -2185,7 +2185,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Solution to Challenge 7
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <p>Make another matrix, this time containing the numbers 1:50, with 5
 columns and 10 rows. Did the <code>matrix</code> function fill your
@@ -2226,7 +2226,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Solution to Challenge 8
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb173">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2277,7 +2277,7 @@ <h4 class="accordion-header" id="headingSolution15">
   Solution to Challenge 9
   </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <p>Consider the R output of the matrix below:</p>
 <div class="codewrapper">
@@ -2376,7 +2376,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/04-data-structures-part1.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/05-data-structures-part2.html b/05-data-structures-part2.html
index 32b2bf772..af6cbee95 100644
--- a/05-data-structures-part2.html
+++ b/05-data-structures-part2.html
@@ -1174,7 +1174,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/05-data-structures-part2.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/06-data-subsetting.html b/06-data-subsetting.html
index 08c3c98d8..bc671d779 100644
--- a/06-data-subsetting.html
+++ b/06-data-subsetting.html
@@ -720,7 +720,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb34">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -905,7 +905,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb50">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1156,7 +1156,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ul><li>The <strong>wrong</strong> way to do this problem is
 <code>countries==seAsia</code>. This gives a warning
@@ -1434,7 +1434,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>D</p>
 </div>
@@ -1579,7 +1579,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to challenge 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb115">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1644,7 +1644,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Solution to challenge 6
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb122">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1798,7 +1798,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Solution to challenge 7
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Fix each of the following common data frame subsetting errors:</p>
 <ol style="list-style-type: decimal"><li>Extract observations collected for the year 1957</li>
@@ -1871,7 +1871,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Solution to challenge 8
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><p><code>gapminder</code> is a data.frame so needs to be subsetted
 on two dimensions. <code>gapminder[1:20, ]</code> subsets the data to
@@ -1963,7 +1963,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/06-data-subsetting.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/08-plot-ggplot2.html b/08-plot-ggplot2.html
index f0a83d9b4..e70ef1de1 100644
--- a/08-plot-ggplot2.html
+++ b/08-plot-ggplot2.html
@@ -525,7 +525,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Here is one possible solution:</p>
 <div class="codewrapper sourceCode" id="cb5">
@@ -565,7 +565,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>The solution presented below adds <code>color=continent</code> to the
 call of the <code>aes</code> function. The general trend seems to
@@ -673,7 +673,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The lines now get drawn over the points!</p>
 <div class="codewrapper sourceCode" id="cb11">
@@ -795,7 +795,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to challenge 4a
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here a possible solution: Notice that the <code>color</code> argument
 is supplied outside of the <code>aes()</code> function. This means that
@@ -838,7 +838,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to challenge 4b
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>Here is a possible solution: Notice that supplying the
 <code>color</code> argument inside the <code>aes()</code> functions
@@ -987,7 +987,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Solution to Challenge 5
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>Here a possible solution: <code>xlab()</code> and <code>ylab()</code>
 set labels for the x and y axes, respectively The axis title, text and
@@ -1080,7 +1080,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/08-plot-ggplot2.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/11-writing-data.html b/11-writing-data.html
index 17108f6a9..eb8516a18 100644
--- a/11-writing-data.html
+++ b/11-writing-data.html
@@ -680,7 +680,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/11-writing-data.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/12-dplyr.html b/12-dplyr.html
index 328115dd5..4ad890679 100644
--- a/12-dplyr.html
+++ b/12-dplyr.html
@@ -1227,7 +1227,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/12-dplyr.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/13-tidyr.html b/13-tidyr.html
index 4cb54b9c8..36d872764 100644
--- a/13-tidyr.html
+++ b/13-tidyr.html
@@ -494,7 +494,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The original gapminder data.frame is in an intermediate format. It is
 not purely long since it had multiple observation variables
@@ -686,7 +686,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -982,7 +982,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1154,7 +1154,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/13-tidyr.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/14-knitr-markdown.html b/14-knitr-markdown.html
index adc6d00f3..214c34b17 100644
--- a/14-knitr-markdown.html
+++ b/14-knitr-markdown.html
@@ -566,7 +566,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>In RStudio, select File &gt; New file &gt; R Markdown…</p>
 <p>Delete the placeholder text and add the following:</p>
@@ -642,7 +642,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre>
 ```{r load-ggplot2}
@@ -727,7 +727,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre>
 ```{r echo = FALSE, fig.width = 3}
@@ -775,7 +775,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here’s some inline code to determine that 2 + 2 = <code>4</code>.</p>
 </div>
@@ -918,7 +918,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/14-knitr-markdown.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/15-wrap-up.html b/15-wrap-up.html
index b59e7c529..d835f4f37 100644
--- a/15-wrap-up.html
+++ b/15-wrap-up.html
@@ -574,7 +574,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/15-wrap-up.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index dd8beddc5..d7764e7ba 100644
--- a/404.html
+++ b/404.html
@@ -441,8 +441,8 @@ <h1>Page not found</h1>
   "url": "https://UCL.github.io/ClinicianCoders/404.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/404.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 66814e31c..4275cd925 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -448,7 +448,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://UCL.github.io/ClinicianCoders/CODE_OF_CONDUCT.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index e15cd3eb3..37b06cca2 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -496,7 +496,7 @@ <h1>Licenses</h1>
   "identifier": "https://UCL.github.io/ClinicianCoders/LICENSE.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index e65d9dc86..19827a93e 100644
--- a/aio.html
+++ b/aio.html
@@ -2126,7 +2126,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>c()</code> function creates a vector, in which all elements
 are of the same type. In the first case, the elements are numeric, in
@@ -2156,7 +2156,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>To look at the help for the <code>paste()</code> function, use:</p>
 <div class="codewrapper sourceCode" id="cb11">
@@ -2265,7 +2265,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The standard R function for reading tab-delimited files with a period
 decimal separator is read.delim(). You can also do this with
@@ -2768,7 +2768,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Discussion 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>By keeping everything in a column the same, we allow ourselves to
 make simple assumptions about our data; if you can interpret one entry
@@ -2999,7 +2999,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Tip 1.1
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Show the content of any variable by typing its name.</p>
 <div class="section level3">
@@ -3033,7 +3033,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Tip 1.2
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>In the chapter “Data types” we saw two functions that can show data
 types. One printed just a single word, the data type name. The other
@@ -3077,7 +3077,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Tip 1.3
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Scroll up to the section about the <a href="#the-type-hierarchy">type
 hierarchy</a> to review the available data types</p>
@@ -3092,7 +3092,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to Challenge 1.3
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <ul>
 <li>Weight is expressed on a continuous scale (real numbers). The R data
@@ -3127,7 +3127,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Tip 1.4
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>Revisit the hierarchy of data types when two different data types are
 combined.</p>
@@ -3168,7 +3168,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Tip 1.5
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>The functions to convert data types start with <code>as.</code>. You
 can look for the function further up in the manuscript or use the
@@ -3360,7 +3360,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb92">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -3591,7 +3591,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p>You get the names of an object by wrapping the object name inside
 <code>names(...)</code>. Similarly, you get the data type of the names
@@ -3637,7 +3637,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code><span><span class="va">letter_no</span> <span class="op">&lt;-</span> <span class="fl">1</span><span class="op">:</span><span class="fl">26</span>   <span class="co"># or seq(1,26)</span></span>
 <span><span class="fu">names</span><span class="op">(</span><span class="va">letter_no</span><span class="op">)</span> <span class="op">&lt;-</span> <span class="va">LETTERS</span></span>
@@ -3829,7 +3829,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Solution to Challenge 5
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb138">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4090,7 +4090,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Solution to Challenge 6
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <p>What do you think will be the result of
 <code>length(matrix_example)</code>?</p>
@@ -4135,7 +4135,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Solution to Challenge 7
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <p>Make another matrix, this time containing the numbers 1:50, with 5
 columns and 10 rows. Did the <code>matrix</code> function fill your
@@ -4178,7 +4178,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Solution to Challenge 8
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb173">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4231,7 +4231,7 @@ <h4 class="accordion-header" id="headingSolution15">
   Solution to Challenge 9
   </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <p>Consider the R output of the matrix below:</p>
 <div class="codewrapper">
@@ -5364,7 +5364,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb34">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5557,7 +5557,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb50">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5811,7 +5811,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ul>
 <li>The <strong>wrong</strong> way to do this problem is
@@ -6102,7 +6102,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>D</p>
 </div>
@@ -6249,7 +6249,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to challenge 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb115">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6314,7 +6314,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Solution to challenge 6
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb122">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6480,7 +6480,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Solution to challenge 7
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Fix each of the following common data frame subsetting errors:</p>
 <ol style="list-style-type: decimal">
@@ -6565,7 +6565,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Solution to challenge 8
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><p><code>gapminder</code> is a data.frame so needs to be subsetted
@@ -6746,7 +6746,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Here is one possible solution:</p>
 <div class="codewrapper sourceCode" id="cb5">
@@ -6787,7 +6787,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>The solution presented below adds <code>color=continent</code> to the
 call of the <code>aes</code> function. The general trend seems to
@@ -6898,7 +6898,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The lines now get drawn over the points!</p>
 <div class="codewrapper sourceCode" id="cb11">
@@ -7023,7 +7023,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to challenge 4a
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here a possible solution: Notice that the <code>color</code> argument
 is supplied outside of the <code>aes()</code> function. This means that
@@ -7067,7 +7067,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to challenge 4b
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>Here is a possible solution: Notice that supplying the
 <code>color</code> argument inside the <code>aes()</code> functions
@@ -7225,7 +7225,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Solution to Challenge 5
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>Here a possible solution: <code>xlab()</code> and <code>ylab()</code>
 set labels for the x and y axes, respectively The axis title, text and
@@ -8431,7 +8431,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The original gapminder data.frame is in an intermediate format. It is
 not purely long since it had multiple observation variables
@@ -8625,7 +8625,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8923,7 +8923,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -10141,7 +10141,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>In RStudio, select File &gt; New file &gt; R Markdown…</p>
 <p>Delete the placeholder text and add the following:</p>
@@ -10223,7 +10223,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre>
 ```{r load-ggplot2}
@@ -10314,7 +10314,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre>
 ```{r echo = FALSE, fig.width = 3}
@@ -10364,7 +10364,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here’s some inline code to determine that 2 + 2 = <code>4</code>.</p>
 </div>
@@ -10653,8 +10653,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://UCL.github.io/ClinicianCoders/aio.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/aio.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index c8e725a08..1e7204464 100644
--- a/discuss.html
+++ b/discuss.html
@@ -442,7 +442,7 @@ <h1>Discussion</h1>
   "identifier": "https://UCL.github.io/ClinicianCoders/discuss.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 9a9a2f5da..d2fb658ba 100644
--- a/images.html
+++ b/images.html
@@ -632,8 +632,8 @@ <h3 id="14-knitr-markdown-figure-3">Figure 3</h3>
   "url": "https://UCL.github.io/ClinicianCoders/images.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/images.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index 5905d54d3..2102267ed 100644
--- a/index.html
+++ b/index.html
@@ -460,8 +460,8 @@ <h3 class="callout-title">Prerequisites</h3>
   "url": "https://UCL.github.io/ClinicianCoders/index.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/index.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index 45a5bad08..b94ba9ff2 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -637,8 +637,8 @@ <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i
   "url": "https://UCL.github.io/ClinicianCoders/instructor-notes.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor-notes.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/01-rstudio-intro.html b/instructor/01-rstudio-intro.html
index eae79e40c..f73305c7b 100644
--- a/instructor/01-rstudio-intro.html
+++ b/instructor/01-rstudio-intro.html
@@ -1466,7 +1466,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/01-rstudio-intro.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/02-project-intro.html b/instructor/02-project-intro.html
index 4f5f42558..10a44ae2a 100644
--- a/instructor/02-project-intro.html
+++ b/instructor/02-project-intro.html
@@ -806,7 +806,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/02-project-intro.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/03-seeking-help.html b/instructor/03-seeking-help.html
index 7ecc1fb3c..31c282506 100644
--- a/instructor/03-seeking-help.html
+++ b/instructor/03-seeking-help.html
@@ -621,7 +621,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>c()</code> function creates a vector, in which all elements
 are of the same type. In the first case, the elements are numeric, in
@@ -651,7 +651,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>To look at the help for the <code>paste()</code> function, use:</p>
 <div class="codewrapper sourceCode" id="cb11">
@@ -760,7 +760,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The standard R function for reading tab-delimited files with a period
 decimal separator is read.delim(). You can also do this with
@@ -847,7 +847,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/03-seeking-help.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/04-data-structures-part1.html b/instructor/04-data-structures-part1.html
index 35ce6be09..7f418dc97 100644
--- a/instructor/04-data-structures-part1.html
+++ b/instructor/04-data-structures-part1.html
@@ -847,7 +847,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Discussion 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>By keeping everything in a column the same, we allow ourselves to
 make simple assumptions about our data; if you can interpret one entry
@@ -1073,7 +1073,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Tip 1.1
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Show the content of any variable by typing its name.</p>
 <div class="section level3">
@@ -1106,7 +1106,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Tip 1.2
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>In the chapter “Data types” we saw two functions that can show data
 types. One printed just a single word, the data type name. The other
@@ -1147,7 +1147,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Tip 1.3
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Scroll up to the section about the <a href="#the-type-hierarchy">type
 hierarchy</a> to review the available data types</p>
@@ -1162,7 +1162,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to Challenge 1.3
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <ul><li>Weight is expressed on a continuous scale (real numbers). The R data
 type for this is “double” (also known as “numeric”).</li>
@@ -1195,7 +1195,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Tip 1.4
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>Revisit the hierarchy of data types when two different data types are
 combined.</p>
@@ -1235,7 +1235,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Tip 1.5
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>The functions to convert data types start with <code>as.</code>. You
 can look for the function further up in the manuscript or use the
@@ -1426,7 +1426,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb92">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1650,7 +1650,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p>You get the names of an object by wrapping the object name inside
 <code>names(...)</code>. Similarly, you get the data type of the names
@@ -1694,7 +1694,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code><span><span class="va">letter_no</span> <span class="op">&lt;-</span> <span class="fl">1</span><span class="op">:</span><span class="fl">26</span>   <span class="co"># or seq(1,26)</span></span>
 <span><span class="fu">names</span><span class="op">(</span><span class="va">letter_no</span><span class="op">)</span> <span class="op">&lt;-</span> <span class="va">LETTERS</span></span>
@@ -1882,7 +1882,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Solution to Challenge 5
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb138">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2142,7 +2142,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Solution to Challenge 6
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <p>What do you think will be the result of
 <code>length(matrix_example)</code>?</p>
@@ -2187,7 +2187,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Solution to Challenge 7
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <p>Make another matrix, this time containing the numbers 1:50, with 5
 columns and 10 rows. Did the <code>matrix</code> function fill your
@@ -2228,7 +2228,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Solution to Challenge 8
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb173">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -2279,7 +2279,7 @@ <h4 class="accordion-header" id="headingSolution15">
   Solution to Challenge 9
   </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <p>Consider the R output of the matrix below:</p>
 <div class="codewrapper">
@@ -2378,7 +2378,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/04-data-structures-part1.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/05-data-structures-part2.html b/instructor/05-data-structures-part2.html
index e759e5997..2dd65d6ea 100644
--- a/instructor/05-data-structures-part2.html
+++ b/instructor/05-data-structures-part2.html
@@ -1176,7 +1176,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/05-data-structures-part2.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/06-data-subsetting.html b/instructor/06-data-subsetting.html
index 1967b4756..96e363485 100644
--- a/instructor/06-data-subsetting.html
+++ b/instructor/06-data-subsetting.html
@@ -722,7 +722,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb34">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -907,7 +907,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb50">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1158,7 +1158,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ul><li>The <strong>wrong</strong> way to do this problem is
 <code>countries==seAsia</code>. This gives a warning
@@ -1436,7 +1436,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>D</p>
 </div>
@@ -1581,7 +1581,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to challenge 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb115">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1646,7 +1646,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Solution to challenge 6
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb122">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1800,7 +1800,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Solution to challenge 7
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Fix each of the following common data frame subsetting errors:</p>
 <ol style="list-style-type: decimal"><li>Extract observations collected for the year 1957</li>
@@ -1873,7 +1873,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Solution to challenge 8
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><p><code>gapminder</code> is a data.frame so needs to be subsetted
 on two dimensions. <code>gapminder[1:20, ]</code> subsets the data to
@@ -1965,7 +1965,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/06-data-subsetting.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/08-plot-ggplot2.html b/instructor/08-plot-ggplot2.html
index 861be54da..313538dda 100644
--- a/instructor/08-plot-ggplot2.html
+++ b/instructor/08-plot-ggplot2.html
@@ -527,7 +527,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Here is one possible solution:</p>
 <div class="codewrapper sourceCode" id="cb5">
@@ -567,7 +567,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>The solution presented below adds <code>color=continent</code> to the
 call of the <code>aes</code> function. The general trend seems to
@@ -675,7 +675,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The lines now get drawn over the points!</p>
 <div class="codewrapper sourceCode" id="cb11">
@@ -797,7 +797,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to challenge 4a
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here a possible solution: Notice that the <code>color</code> argument
 is supplied outside of the <code>aes()</code> function. This means that
@@ -840,7 +840,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to challenge 4b
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>Here is a possible solution: Notice that supplying the
 <code>color</code> argument inside the <code>aes()</code> functions
@@ -989,7 +989,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Solution to Challenge 5
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>Here a possible solution: <code>xlab()</code> and <code>ylab()</code>
 set labels for the x and y axes, respectively The axis title, text and
@@ -1082,7 +1082,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/08-plot-ggplot2.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/11-writing-data.html b/instructor/11-writing-data.html
index a4cad1e91..bdb779ec0 100644
--- a/instructor/11-writing-data.html
+++ b/instructor/11-writing-data.html
@@ -682,7 +682,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/11-writing-data.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/12-dplyr.html b/instructor/12-dplyr.html
index a5851adf7..80ff8ee8c 100644
--- a/instructor/12-dplyr.html
+++ b/instructor/12-dplyr.html
@@ -1229,7 +1229,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/12-dplyr.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/13-tidyr.html b/instructor/13-tidyr.html
index 4d898e76b..883a2b58d 100644
--- a/instructor/13-tidyr.html
+++ b/instructor/13-tidyr.html
@@ -496,7 +496,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The original gapminder data.frame is in an intermediate format. It is
 not purely long since it had multiple observation variables
@@ -688,7 +688,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -984,7 +984,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1156,7 +1156,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/13-tidyr.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/14-knitr-markdown.html b/instructor/14-knitr-markdown.html
index dd1fbc6f7..0c48811e1 100644
--- a/instructor/14-knitr-markdown.html
+++ b/instructor/14-knitr-markdown.html
@@ -568,7 +568,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>In RStudio, select File &gt; New file &gt; R Markdown…</p>
 <p>Delete the placeholder text and add the following:</p>
@@ -644,7 +644,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre>
 ```{r load-ggplot2}
@@ -729,7 +729,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre>
 ```{r echo = FALSE, fig.width = 3}
@@ -777,7 +777,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here’s some inline code to determine that 2 + 2 = <code>4</code>.</p>
 </div>
@@ -920,7 +920,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/14-knitr-markdown.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/15-wrap-up.html b/instructor/15-wrap-up.html
index 37417e069..072d69121 100644
--- a/instructor/15-wrap-up.html
+++ b/instructor/15-wrap-up.html
@@ -576,7 +576,7 @@ <h3 class="callout-title">Key Points</h3>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/15-wrap-up.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index c07c7f08c..d93126e10 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -441,8 +441,8 @@ <h1>Page not found</h1>
   "url": "https://UCL.github.io/ClinicianCoders/instructor/404.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/404.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index 9869a24df..47c0e21f4 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -450,7 +450,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 21e0edd72..96e01ec80 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -498,7 +498,7 @@ <h1>Licenses</h1>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/LICENSE.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 201dd8796..cf477f724 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -2152,7 +2152,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>The <code>c()</code> function creates a vector, in which all elements
 are of the same type. In the first case, the elements are numeric, in
@@ -2182,7 +2182,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>To look at the help for the <code>paste()</code> function, use:</p>
 <div class="codewrapper sourceCode" id="cb11">
@@ -2291,7 +2291,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The standard R function for reading tab-delimited files with a period
 decimal separator is read.delim(). You can also do this with
@@ -2795,7 +2795,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Discussion 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>By keeping everything in a column the same, we allow ourselves to
 make simple assumptions about our data; if you can interpret one entry
@@ -3026,7 +3026,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Tip 1.1
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>Show the content of any variable by typing its name.</p>
 <div class="section level3">
@@ -3060,7 +3060,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Tip 1.2
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>In the chapter “Data types” we saw two functions that can show data
 types. One printed just a single word, the data type name. The other
@@ -3104,7 +3104,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Tip 1.3
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Scroll up to the section about the <a href="#the-type-hierarchy">type
 hierarchy</a> to review the available data types</p>
@@ -3119,7 +3119,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to Challenge 1.3
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <ul>
 <li>Weight is expressed on a continuous scale (real numbers). The R data
@@ -3154,7 +3154,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Tip 1.4
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>Revisit the hierarchy of data types when two different data types are
 combined.</p>
@@ -3195,7 +3195,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Tip 1.5
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>The functions to convert data types start with <code>as.</code>. You
 can look for the function further up in the manuscript or use the
@@ -3387,7 +3387,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb92">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -3618,7 +3618,7 @@ <h4 class="accordion-header" id="headingSolution9">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution9" class="accordion-collapse collapse" data-bs-parent="#accordionSolution9" aria-labelledby="headingSolution9">
+<div id="collapseSolution9" class="accordion-collapse collapse" aria-labelledby="headingSolution9" data-bs-parent="#accordionSolution9">
 <div class="accordion-body">
 <p>You get the names of an object by wrapping the object name inside
 <code>names(...)</code>. Similarly, you get the data type of the names
@@ -3664,7 +3664,7 @@ <h4 class="accordion-header" id="headingSolution10">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution10" class="accordion-collapse collapse" data-bs-parent="#accordionSolution10" aria-labelledby="headingSolution10">
+<div id="collapseSolution10" class="accordion-collapse collapse" aria-labelledby="headingSolution10" data-bs-parent="#accordionSolution10">
 <div class="accordion-body">
 <pre><code><span><span class="va">letter_no</span> <span class="op">&lt;-</span> <span class="fl">1</span><span class="op">:</span><span class="fl">26</span>   <span class="co"># or seq(1,26)</span></span>
 <span><span class="fu">names</span><span class="op">(</span><span class="va">letter_no</span><span class="op">)</span> <span class="op">&lt;-</span> <span class="va">LETTERS</span></span>
@@ -3856,7 +3856,7 @@ <h4 class="accordion-header" id="headingSolution11">
   Solution to Challenge 5
   </h4>
 </button>
-<div id="collapseSolution11" class="accordion-collapse collapse" data-bs-parent="#accordionSolution11" aria-labelledby="headingSolution11">
+<div id="collapseSolution11" class="accordion-collapse collapse" aria-labelledby="headingSolution11" data-bs-parent="#accordionSolution11">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb138">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4117,7 +4117,7 @@ <h4 class="accordion-header" id="headingSolution12">
   Solution to Challenge 6
   </h4>
 </button>
-<div id="collapseSolution12" class="accordion-collapse collapse" data-bs-parent="#accordionSolution12" aria-labelledby="headingSolution12">
+<div id="collapseSolution12" class="accordion-collapse collapse" aria-labelledby="headingSolution12" data-bs-parent="#accordionSolution12">
 <div class="accordion-body">
 <p>What do you think will be the result of
 <code>length(matrix_example)</code>?</p>
@@ -4162,7 +4162,7 @@ <h4 class="accordion-header" id="headingSolution13">
   Solution to Challenge 7
   </h4>
 </button>
-<div id="collapseSolution13" class="accordion-collapse collapse" data-bs-parent="#accordionSolution13" aria-labelledby="headingSolution13">
+<div id="collapseSolution13" class="accordion-collapse collapse" aria-labelledby="headingSolution13" data-bs-parent="#accordionSolution13">
 <div class="accordion-body">
 <p>Make another matrix, this time containing the numbers 1:50, with 5
 columns and 10 rows. Did the <code>matrix</code> function fill your
@@ -4205,7 +4205,7 @@ <h4 class="accordion-header" id="headingSolution14">
   Solution to Challenge 8
   </h4>
 </button>
-<div id="collapseSolution14" class="accordion-collapse collapse" data-bs-parent="#accordionSolution14" aria-labelledby="headingSolution14">
+<div id="collapseSolution14" class="accordion-collapse collapse" aria-labelledby="headingSolution14" data-bs-parent="#accordionSolution14">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb173">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4258,7 +4258,7 @@ <h4 class="accordion-header" id="headingSolution15">
   Solution to Challenge 9
   </h4>
 </button>
-<div id="collapseSolution15" class="accordion-collapse collapse" data-bs-parent="#accordionSolution15" aria-labelledby="headingSolution15">
+<div id="collapseSolution15" class="accordion-collapse collapse" aria-labelledby="headingSolution15" data-bs-parent="#accordionSolution15">
 <div class="accordion-body">
 <p>Consider the R output of the matrix below:</p>
 <div class="codewrapper">
@@ -5393,7 +5393,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb34">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5586,7 +5586,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb50">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5840,7 +5840,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ul>
 <li>The <strong>wrong</strong> way to do this problem is
@@ -6131,7 +6131,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>D</p>
 </div>
@@ -6278,7 +6278,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to challenge 5
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb115">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6343,7 +6343,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Solution to challenge 6
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb122">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -6509,7 +6509,7 @@ <h4 class="accordion-header" id="headingSolution7">
   Solution to challenge 7
   </h4>
 </button>
-<div id="collapseSolution7" class="accordion-collapse collapse" data-bs-parent="#accordionSolution7" aria-labelledby="headingSolution7">
+<div id="collapseSolution7" class="accordion-collapse collapse" aria-labelledby="headingSolution7" data-bs-parent="#accordionSolution7">
 <div class="accordion-body">
 <p>Fix each of the following common data frame subsetting errors:</p>
 <ol style="list-style-type: decimal">
@@ -6594,7 +6594,7 @@ <h4 class="accordion-header" id="headingSolution8">
   Solution to challenge 8
   </h4>
 </button>
-<div id="collapseSolution8" class="accordion-collapse collapse" data-bs-parent="#accordionSolution8" aria-labelledby="headingSolution8">
+<div id="collapseSolution8" class="accordion-collapse collapse" aria-labelledby="headingSolution8" data-bs-parent="#accordionSolution8">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><p><code>gapminder</code> is a data.frame so needs to be subsetted
@@ -6776,7 +6776,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Here is one possible solution:</p>
 <div class="codewrapper sourceCode" id="cb5">
@@ -6817,7 +6817,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>The solution presented below adds <code>color=continent</code> to the
 call of the <code>aes</code> function. The general trend seems to
@@ -6928,7 +6928,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <p>The lines now get drawn over the points!</p>
 <div class="codewrapper sourceCode" id="cb11">
@@ -7053,7 +7053,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to challenge 4a
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here a possible solution: Notice that the <code>color</code> argument
 is supplied outside of the <code>aes()</code> function. This means that
@@ -7097,7 +7097,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Solution to challenge 4b
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
 <div class="accordion-body">
 <p>Here is a possible solution: Notice that supplying the
 <code>color</code> argument inside the <code>aes()</code> functions
@@ -7255,7 +7255,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Solution to Challenge 5
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
 <div class="accordion-body">
 <p>Here a possible solution: <code>xlab()</code> and <code>ylab()</code>
 set labels for the x and y axes, respectively The axis title, text and
@@ -8464,7 +8464,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>The original gapminder data.frame is in an intermediate format. It is
 not purely long since it had multiple observation variables
@@ -8658,7 +8658,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb12">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -8956,7 +8956,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb37">
 <h3 class="code-label">R<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -10201,7 +10201,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Solution to Challenge 1
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>In RStudio, select File &gt; New file &gt; R Markdown…</p>
 <p>Delete the placeholder text and add the following:</p>
@@ -10283,7 +10283,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Solution to Challenge 2
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <pre>
 ```{r load-ggplot2}
@@ -10374,7 +10374,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Solution to Challenge 3
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <pre>
 ```{r echo = FALSE, fig.width = 3}
@@ -10424,7 +10424,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Solution to Challenge 4
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <p>Here’s some inline code to determine that 2 + 2 = <code>4</code>.</p>
 </div>
@@ -10714,8 +10714,8 @@ <h3 class="callout-title">Key Points</h3>
   "url": "https://UCL.github.io/ClinicianCoders/instructor/aio.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/aio.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 67434e8fb..d9fcefa65 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -444,7 +444,7 @@ <h1>Discussion</h1>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/discuss.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index 96dc6792b..8218e7663 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -634,8 +634,8 @@ <h3 id="14-knitr-markdown-figure-3">Figure 3</h3>
   "url": "https://UCL.github.io/ClinicianCoders/instructor/images.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/images.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index 66e3055d6..5f972e8bd 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -594,8 +594,8 @@ <h3 class="callout-title">Prerequisites</h3>
   "url": "https://UCL.github.io/ClinicianCoders/instructor/index.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/index.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index bd7f7b3b5..7ac5e6994 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -680,8 +680,8 @@ <h3 id="statistics-headingInstructor1">
   "url": "https://UCL.github.io/ClinicianCoders/instructor/instructor-notes.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/instructor-notes.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index 4814311fe..e148e1a88 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -593,8 +593,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://UCL.github.io/ClinicianCoders/instructor/key-points.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/key-points.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index 274afa797..3c9550782 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -399,8 +399,8 @@ <h1>Learner Profiles</h1>
   "url": "https://UCL.github.io/ClinicianCoders/instructor/profiles.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/profiles.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index 8c02adea3..3d007f55e 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -920,7 +920,7 @@ <h1>Reference</h1>
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/reference.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/instructor/statistics.html b/instructor/statistics.html
index 9fc6c418b..ce79e6735 100644
--- a/instructor/statistics.html
+++ b/instructor/statistics.html
@@ -1305,7 +1305,7 @@ <h2 id="lunch">Lunch<a class="anchor" aria-label="anchor" href="#lunch"></a></h2
   "identifier": "https://UCL.github.io/ClinicianCoders/instructor/statistics.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index 076c5171a..c6871e1ff 100644
--- a/key-points.html
+++ b/key-points.html
@@ -591,8 +591,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://UCL.github.io/ClinicianCoders/key-points.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/key-points.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index 7fd284d0c..06df69cf3 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,4 +2,4 @@ pandoc: 3.1.11
 pkgdown: 2.1.1
 pkgdown_sha: ~
 articles: {}
-last_built: 2024-12-24T00:29Z
+last_built: 2024-12-31T00:29Z
diff --git a/profiles.html b/profiles.html
index f5f287dcb..986e904e6 100644
--- a/profiles.html
+++ b/profiles.html
@@ -399,8 +399,8 @@ <h1>Learner Profiles</h1>
   "url": "https://UCL.github.io/ClinicianCoders/profiles.html",
   "identifier": "https://UCL.github.io/ClinicianCoders/profiles.html",
   "dateCreated": "2023-10-26",
-  "dateModified": "2024-12-24",
-  "datePublished": "2024-12-24"
+  "dateModified": "2024-12-31",
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index 1bfa42e6a..567dba523 100644
--- a/reference.html
+++ b/reference.html
@@ -918,7 +918,7 @@ <h1>Reference</h1>
   "identifier": "https://UCL.github.io/ClinicianCoders/reference.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>
diff --git a/statistics.html b/statistics.html
index c67e1a91d..0ef31192a 100644
--- a/statistics.html
+++ b/statistics.html
@@ -1278,7 +1278,7 @@ <h2 id="lunch">Lunch<a class="anchor" aria-label="anchor" href="#lunch"></a></h2
   "identifier": "https://UCL.github.io/ClinicianCoders/statistics.html",
   "dateCreated": "2023-10-26",
   "dateModified": "2024-12-04",
-  "datePublished": "2024-12-24"
+  "datePublished": "2024-12-31"
 }
 
   </script><script>