Dear R forum,
The example below is just an indicative one and I have constructed it. My real
life data and conditions are different.
I have a data.frame as given below
mydat = data.frame(A = c(19, 20, 19, 19, 19, 18, 16, 18, 19, 20), B = c(19, 20,
20, 19, 20, 18, 19, 18, 17, 16))
if (length(mydat$A) > 10)
{
stop("A has length more than 10")
}else
if (max(mydat$B) > 18)
{
stop("max B exceeds limit")
}else
{result = mydat$A + mydat$B
if (length(result) > 0)
{
write.csv(data.frame(result = result), 'result.csv', row.names = FALSE)
}
}
# -----------------------------------------------------------------
When i execute above code, I get message
Error: max B exceeds limit
If all conditions are met, obviously I am getting an output as result.csv
If result.csv is generated, I am able to capture and show the output in front
end. However, if the process couldn't be run owing to the violation of
conditions, the error is produced. How do I capture this error (and express it
as csv file) so that I can show it as a comment in front end.
Kindly guide.
Katherine
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
