Is there a way to make Rstudio tell you which line of which sourcefile generated a warning message?
Right now it just prints the message and I am lost as to what is causing the issue.
In Rstudio, this menu option is checked:
Debug > Error > Error Inspector
But it doesnt' help, probably because these are warnings and not errors? Ideas?
First turn on displaying warnings using the command
options(warn=1)
Then, you could run it by clicking on the "Source" or "Source with Echo" button (see image below). You can see the error/warning messages when any line with errors/warnings is executed.
Related
I know that this error has been asked often but I've checked most of the questions and none of them have the same cause as mine, at least on the surface.
I work in Rstudio. The console lets you write functions and offers suggestions, for example if I start typing "ex" the first option will be the "exp" function:
(example)
The problem is that everytime that the suggestion box appears there is a small time (usually a second or two) before a pop up window appears, saying "Error retrieving help. R code execution error" and in the console the text in red says: "Error in file(out, "wt") : cannot open the connection". Fortunately the console command that I'm writing doesn't get deleted but it is still very annoying and sometimes I want to use the suggestion box to save time but it feels that I have to rush to select the function before Rstudio punishes me.
I've encountered a problem in Rstudio (R-Markdown), whenever I knit my file it would just load a blank page. I've been using Rstudio and it has been working fine until last night.
The error/warning message is shown in the pic below. I'm kinda new so I'm hoping you could guide me to what I did wrong and what I need to do.
Rmd with Warning message and the HTML Output
I am stuck in the debugger. I had an error in a function I ran using RStudio. I clicked the rerun with debugger and now every time I run it, it starts the debugger and I can't stop it.
It tells me that the function being debugged is [.data.frame however if I try `undebug('[') or undebug('[.data.frame') I get
Warning message:
In undebug([) : argument is not being debugged
I have restarted RStudio, but that does not help either. I have tried running some of the functions from this SO question to no avail.
Any ideas?
Then try this
"Debug" -> "On Error" menu and select "Message only"
click here for more informations
I am trying to set a break point inside a function from a package I wrote. I am unsuccessful when clicking next to the line number in Rstudio, the error message looks like:
I am not executing anything. Reloading the package did not help either. What is this error and what can I do about it?
Check out this documentation from RStudio that explains what to do.
Basically, make sure you save your R file, then click the Source button on the toolbar:
Your breakpoint should then turn from a hollow red circle to a full one.
Usually running rm(list=ls()) will do the job.
Is it possible to see the syntax error or runtime error line number (highlight also) generated after running the code in R studio?
I searched the options but couldn't find.
First, have a look at ?traceback.
There are many ways to debug R code/script. This is only one example.
In RStudio, from the Debug drop down menu option On Error, choose Error Inspector for (what I think is) the easiest debug mode for finding the line number of an error/bug. You can also choose Break in Code to show the highlighted line of an R script that contains the error.
When the error occurs, you can click either of the small areas marked Show Traceback and Rerun with Debug. The screen shot below shows the effect of clicking "Show Traceback" (hence it now says "Hide Traceback"). It tells me that the error occurred when R attempted to call sample (the third call). LENGTH had not yet been defined.