Thanks
Bernard
Sent from my iPhone so please excuse the spelling!"
> On Feb 27, 2019, at 4:05 PM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote:
>
>> On 27/02/2019 3:55 p.m., Bernard Comcast wrote:
>> 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.
>
> The recommended way is to use tryCatch() around the expression you're
> evaluating. A simpler, less flexible alternative is try(). The Excel
> version sounds a bit more like try(). You'd use it like this:
>
> value <- try({ x <- 1
> y <- someFunction(x)
> someOtherFunction(y)
> })
> if (inherits(value, "try-error")) {
> cat ("something went wrong. There's information in value about what
> happened.")
> } else {
> cat ("value is fine, there was no error.")
> }
>
> Duncan Murdoch
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