Make shiny frequency curves run as a proper R demo

Change-Id: I75dbfd97c98cd586f012e4d6409ed71d7745a201

Author: kupietz

.Rbuildignore

@@ -8,3 +8,4 @@
 ^docs$
 ^_pkgdown\.yml$
 ^CRAN-RELEASE$
+^.*\.log$

.gitignore

@@ -4,3 +4,4 @@
 .Ruserdata
 cache/
 docs
+*.log

NEWS.md

@@ -3,6 +3,7 @@
 ## Changes
 - collocationScoreQuery method added
 - hc_add_onclick_korap_search function added
+- shiny web application demo added
 - support for orphaned plotly package dropped
 
 # RKorAPClient 0.5.9

demo/00Index

@@ -5,4 +5,5 @@ alternativesOverTime      Plot proportion of alternative spellings/variants over
 regional                  Map plot regional frequencies of query expression
 mosaicplot                Visualize frequencies of alternative query terms in relation to other variables
 highcharter-example       Visualize frqequencies of optionally alternative terms over time with interactive HTML and JavaScript elements using the package highcharter as wrapper for Highcharts
+shiny-frequency-curves    Web application that plots frequency curves with highcharts and shiny
 writtenVsSpoken           Compare frequencies in written vs. spoken corpora

demo/shiny-apps/frequency_curves/theme-ids-dark.R

@@ -0,0 +1 @@
+shiny::runApp(system.file("shiny-apps", "frequency_curves", package="RKorAPClient"))

demo/shiny-frequency-curves.R

@@ -1,3 +1,8 @@
+hc_theme <- if(require(idsThemeR)) {
+  idsThemeR::hc_theme_ids_light()
+} else {
+  hc_theme_hcrt()
+}
 rsr <- new("KorAPConnection", verbose = TRUE)
 vc <- "(textType = /Zeit.*/ | textTypeRef=Plenarprotokoll) & availability!=QAO-NC-LOC:ids & creationDate in"
 years <- c(2005:2020)
@@ -36,7 +41,7 @@ plotHighchart <- function(query = c("Tolpatsch", "Tollpatsch"),
                        as.alternatives = as.alternatives) %>%
     hc_freq_by_year_ci(as.alternatives, smooth = T) %>%
     hc_yAxis(title = list(text = "Instanzen pro Million Wörter")) %>%
-    hc_add_theme(hc_theme_ids_light()) %>%
+    hc_add_theme(hc_theme) %>%
     hc_caption(text = paste(
       "Frequenzverläufe (mit 95%-Konfidenzbändern) im",
       "<a href='http://www.dereko.de'>Deutschen Referenzkorpus DeReKo</a>",

demo/shiny-apps/frequency_curves/server.R renamed to inst/shiny-apps/frequency_curves/server.R

@@ -3,10 +3,10 @@ library(highcharter)
 library(RKorAPClient)
 library(utils)
 library(stringr)
-library(idsThemeR)
-#source("theme-ids-dark.R")
+library()
 options(shiny.autoreload = TRUE)
 
+
 shinyUI(
   fluidPage(
     title = "Wortfrequenzverläufe in DeReKo",