Dear R Users,
what is the best way to trace the origin of warning messages?
If an error occurs I can use traceback() to see where it comes from. I
would like to do similar investigation, where a warning message
originates from.
Is there an option to turn warnings to errors?
I tried the following
> fWarn <- function(){ warning("A") }
> options(warning.expression = stop())
> fWarn()
> traceback()
2: stop()
1: options(warning.expression = stop())
Hence, it does not give me the desired stack trace and the information
that the warning occured in function fWarn, so far.
(using Windows XP, R version 2.10.1)
Best regards
Thomas Wutzler
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