Dear R-devel list members,
Is it possible to capture more than one warning message using tryCatch()? The
answer may be in ?conditions, but, if it is, I can't locate it.
For example, in the following only the first warning message is captured and
reported:
> foo <- function(){
+ warning("warning 1")
+ warning("warning 2")
+ }
> foo()
Warning messages:
1: In foo() : warning 1
2: In foo() : warning 2
> bar <- function(){
+ tryCatch(foo(), warning=function(w) print(w))
+ }
> bar()
<simpleWarning in foo(): warning 1>
Is there a way to capture "warning 2" as well?
Any help would be appreciated.
John
--
John Fox, Professor Emeritus
McMaster University
Hamilton, Ontario, Canada
Web: http://socserv.mcmaster.ca/jfox/
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