On 11-09-27 12:20 AM, arunkumar1111 wrote:
Hi
I want to terminate R process if there are any execution error.
a="a"
b=10
c=try(a/b)
if(class(c)[1]=="try-error")
{
stop("Wrong Input Value")
}
d=c*c
if c fails then it should terminate the process.
Please can anyone help
Keep the try(a/b), but replace the conditional with
if (inherits(c, "try-error")) q("no")
See ?q if you want to set an error status to be returned, or do want to
save the workspace, etc.
(And do use inherits() rather than comparing to a particular entry:
your code will probably work in this example, but it's not the right way
to test the class of something, and some day "try-error" might not be
the first entry.)
Duncan Murdoch
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