Gang Chen <[EMAIL PROTECTED]> writes:
> I wanted something like this:
>
> >tag <- 0;
> >tryCatch(fit.lme <- lme(Beta ~ Trust*Sex*Freq, random = ~1|Subj,
> Model), error=function(err) tag <- 1);
>
> but it seems not working because 'tag' does not get value of 1 when
> error occurs. How can I make it work?
You can use '<<-' to assign to the parent frame like this:
tag <- 0
tryCatch({
print("inside tryCatch")
print(paste("tag", tag))
stop("forcing an error")
}, error=function(e) {
print("caught an error")
tag <<- 1
})
But you can also use the return value of tryCatch as a return code if
that is what "tag" is. Like this:
fail <- TRUE
tag <- tryCatch({
print("inside tryCatch")
if (fail)
stop("forcing an error")
0
}, error=function(e) {
print("caught an error")
1
})
tag
+ seth
--
Seth Falcon | Computational Biology | Fred Hutchinson Cancer Research Center
BioC: http://bioconductor.org/
Blog: http://userprimary.net/user/
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