Dear R-users,
Let's consider the following snippet:
f <- function(x) tryCatch(sum(x),error=function(e) stop(e))
f('a')
As expected, the last call returns an error message: Error in sum(x) :
invalid 'type' (character) of argument
My questions are the following:
1- can I easily ask the stop function to reference the "f" function in
addition to "sum(x)" in the error message?
2- If not, I guess I would have to extract the call and message objects
from e, coerce the call as a character object, build a custom string,
and pass it to the stop function using call.=F. How can I coerce a call
object to a character and maintain the "aspect" of the printed call
(i.e. "sum(x)" instead of the character vector "sum" "x" returned by
as.character(e$call))?
Thank you
Sebastien
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