From 1ff499af8cd9e02729942096f099a8300e98eba2 Mon Sep 17 00:00:00 2001
From: Michael Hahsler <mhahsler@smu.edu>
Date: Tue, 25 Jun 2024 17:19:08 -0500
Subject: [PATCH] better check if pmml is installed.

---
 R/pmml.R    | 5 +----
 man/pmml.Rd | 5 ++---
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/R/pmml.R b/R/pmml.R
index baa6966..96d1130 100644
--- a/R/pmml.R
+++ b/R/pmml.R
@@ -34,9 +34,7 @@
 #' @references PMML 4.4 - Association Rules.
 #' \url{https://dmg.org/pmml/v4-4/AssociationRules.html}
 #' @keywords interface
-#' @examples
-#' ### only run this example if pmml is installed
-#' if("pmml" %in% rownames(installed.packages())) {
+#' @examplesIf requireNamespace("pmml", quietly = TRUE)
 #' data("Groceries")
 #'
 #' rules <- apriori(Groceries, parameter = list(support = 0.001))
@@ -56,7 +54,6 @@
 #'
 #' ### clean up
 #' unlink("rules.xml")
-#' }
 NULL
 
 #' @rdname pmml
diff --git a/man/pmml.Rd b/man/pmml.Rd
index 94e089a..ebb302d 100644
--- a/man/pmml.Rd
+++ b/man/pmml.Rd
@@ -21,8 +21,7 @@ This function reads and writes PMML representations (version 4.1) of
 \link{associations} (\link{itemsets} and \link{rules}). Write delegates to package \pkg{pmml}.
 }
 \examples{
-### only run this example if pmml is installed
-if("pmml" \%in\% rownames(installed.packages())) {
+\dontshow{if (requireNamespace("pmml", quietly = TRUE)) (if (getRversion() >= "3.4") withAutoprint else force)(\{ # examplesIf}
 data("Groceries")
 
 rules <- apriori(Groceries, parameter = list(support = 0.001))
@@ -42,7 +41,7 @@ inspect(rules2[1])
 
 ### clean up
 unlink("rules.xml")
-}
+\dontshow{\}) # examplesIf}
 }
 \references{
 PMML 4.4 - Association Rules.