[R] Error trapping in R

Rui Barradas ru|pb@rr@d@@ @end|ng |rom @@po@pt
Wed Feb 27 22:13:40 CET 2019


You can trap errors with ?try or ?tryCatch.

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)


for(i in seq_along(result)) {
   err <- inherits(result[[i]], "error")

Hope this helps,

Rui Barradas

Às 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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