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I was wondering how one is able to produce error messages in R, especially from within a function?
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In R Programming, there are basically two ways in which we can implement an error handling mechanism. Either we can directly call the functions like stop() or warning(), or we can use the error options such as “warn” or “warning. expression”.
If your bug is in the language, though, or the Core-supported packages, you should submit your report to R's Bugzilla. NOTE: due to abuse by spammers, since 2016-07-09 only “members” (including all who have previously submitted bugs) can submit new bugs on R's Bugzilla.
The stop R function generates an error message and stops executing the current R code.
Since you don't specify what you really want, all I just can say is take a look at
?message # prints a message but not stop execution ?warning # prints a warning message but not stop execution ?stop # stops execution of the current expression and executes an error action. Simply include stop() inside your function/script
If you'd like an error message, include it inside stop() like so
stop("This is an error message") If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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