[R] Error trapping in R

[Rui Barradas]

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

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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