I'm working with RStudio Version 0.98.507. Short Info about initial working instruments:
R version 3.1.0 (2014-04-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=German_Germany.1252 LC_CTYPE=German_Germany.1252
[3] LC_MONETARY=German_Germany.1252 LC_NUMERIC=C
[5] LC_TIME=German_Germany.1252
other attached packages:
[1] shinyapps_0.3.53 RJSONIO_1.2-0.2 shiny_0.9.1.9013
loaded via a namespace (and not attached):
[1] bitops_1.0-6 Cairo_1.5-5 caTools_1.17 digest_0.6.4
[5] htmltools_0.2.4 httpuv_1.3.0 Rcpp_0.11.1 RCurl_1.95-4.1
[9] shinysky_0.1.2 tools_3.1.0 xtable_1.7-3
I have a problem by deploying my shiny app on the shiny server. The problem was at some point solved, but after it appears again. Now I cannot fix it any more. My problem are the german letters in helpers.R. Unfortunately, I cannot avoid using them. I'm sourcing my help scrpits helpers.R into server.R like it is shown and taught in Shiny Tutorial. All my R-scripts are carefully saved under UTF-8 format. I cannot use the command
options(encoding="UTF-8")
because after executing it, the command deployApp("app") doesn't work. I set location using
Sys.setlocale(category = "LC_ALL", locale = "German")
It also doesn't work. I cannot understand, why the letters in mainPanel and sidebarLayout are readable, but those from helpers.R not. Can someone help me to solve this paradox?
EXAMPLE
ui.R
library(shiny)
shinyUI(fluidPage(withMathJax(),
titlePanel("Währung"),
sidebarLayout(position="right",
sidebarPanel(
h5("Bedienfenster"),
sliderInput('x', 'x axis',
value=50, min=3, max=150, step=1,)
),
mainPanel(
plotOutput("Plot")
)
)
))
server.R
shinyServer(function(input, output){
output$Plot <- renderPlot({
x <- rnorm(input$x)
hist(x, main="", xlab="", ylab="")
title(main="Schätzgerade", xlab="Währung", ylab="Dichte")
})
})
After deploying I get following app.
Answer
As a workaround (which I haven't tested), have you tried using escaped Unicode characters, such as "W\u00E4hrung" instead of "Währung"? You can can find details of how to do this with ?Quotes, and there is a list of Unicode characters at http://en.wikipedia.org/wiki/List_of_Unicode_characters.