R shiny app doesn't print to console
Jose Magaña
I am implementing an R shiny application. I am using cat and print to write to the console and be able to see what is going on.
In the server.R I have some calls to cat before the shinyServer function and they work well. I have though other calls to cat inside shinyServer and their content is not printed although the code is executed, I see the output in the web UI, they are in a reactive block. The UI.R uses a submitButton in case this makes a difference.
As far as I have read, cat should send to console unless redirected, what I am not doing. I am also using cat with file="" and file=stdout() to try avoid any redirection.
If I run the app from a shortcut on the console that gets open the situation is the same. Any ideas on what can be happening?
I use R 3.1.1 and R studio 0.98 in Windows 7.
Joe Cheng
Yeah, stdout is redirected for renderPrint and I believe renderPlot.
Try cat(file=stderr(), ...) instead.
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