[R] ggplot2 not displaying graph in RH7 RStudio Server 3.2.3

[Jeff Newmiller]

Context is everything.  Please follow the Posting Guide and provide a minimal reproducible example. Also,  if your scripts are literally the same on the two platforms, you should provide the output of the sessionInfo() function for each. 
-- 
Sent from my phone. Please excuse my brevity.

On May 18, 2016 12:32:47 AM PDT, phiroc at free.fr wrote:
>
>Hello,
>
>I have written an R script which displays a bar chart using the ggplot2
>library (please refer
>to code excerpt at the bottom of this e-mail).
>
>Although the bar chart is displayed OK in the Windows version of
>RStudio (v. 3.2.4),
>nothing appears on Linux RH 7 in Rstudio Server 3.2.3.
>
>I have tried replacing the data frame in the RH-version of the script
>by 
>
>---------------------------------------------------------------------------
>
>a <- c("ab", "bc", "cd")
>b <- c(1, 2, 3)
>ds <- data.frame(a,b)
>g1 <- ggplot(data = ds, aes(x = a))
>
>
>----------------------------------------------------------------------------
>
>... but to avail: ggplot doesn't plot anything. No error message are
>displayed.
>
>Any help with this issue would be much appreciated.
>
>Many thanks.
>
>phiroc
>
>
>----------------------------- R Code Excerpt
>-------------------------------
>
>
>g1 <- ggplot(data = mergedD, aes(x=DESC_TYPE))
>g1 + geom_bar(stat="count", fill=rainbow(numberOfDistinctActions),
>colour="black") +
>  xlab("Action & Description") +
>  ylab("Count")  +
>  ggtitle(paste0(
>  "Number of Customer Actions in XXX from ", day0, "/", mon,
>  "/", year, " to ", day1, "/", mon, "/", year,
>  " in Paris & Hong Kong")) +
>  coord_flip()
>
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>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

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