Message-ID: <a920a825-e402-339f-0c26-08891866820e@sapo.pt>
Date: 2019-02-27T21:13:40Z
From: Rui Barradas
Subject: Error trapping in R
In-Reply-To: <FD7AB93F-9088-4DA8-A49D-2AB370D27715@comcast.net>
Hello,
You can trap errors with ?try or ?tryCatch.
Example:
result <- vector(mode = "list", length = 5)
for(i in 1:5){
result[[i]] <- tryCatch(if(i == 3) stop("This is an error") else 2*i + 1,
error = function(e) e)
}
result
for(i in seq_along(result)) {
err <- inherits(result[[i]], "error")
print(err)
}
Hope this helps,
Rui Barradas
?s 20:55 de 27/02/2019, Bernard Comcast escreveu:
> What is the recommended way to trap errors in R? My main need is to be able to trap an error and then skip a section of code if an error has occurred. In VB for Excel I used the ?On Error goto .....? construct to do this.
>
> Bernard
> Sent from my iPhone so please excuse the spelling!"
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