search for: tryexcept

...work, as you can return a value. However, sometimes it is useful to assign several variables when an error occurs. You could do it with <<-, but I prefer to reduce it's usage unless completely necessary. I guess that the attachment was missed in the moderation. Here it is the function: tryExcept <- function (expr, except = {}) { doTryExcept <- function(expr, parentenv) { .Internal(.addCondHands("error", list(NULL), parentenv, environment(), FALSE)) expr } parentenv <- parent.frame() doTryExcept(return(exp...

Hi everyone, When dealing with errors, sometimes I want to run a bunch of code when an error occurs. For now I usually use a structure such as: res <- tryCatch(expr, error = function(cond) cond) # or try(expr) if (inherits(res, ?error?)) # or inherits(res, ?try-error?) # a bunch of code I though it would be useful to have a function that does this naturally, so I came up with the attached

Hi Ernest, To start: I don't see an attachment, I think they're not (always) allowed on this mailing-list. If you want to send something, text is your safest bet. But regarding the issue of tryCatch: I think you're not fully using what it already can do. In almost all circumstances I've encountered the following works fine: res <- tryCatch(expr, error = function(cond) { # a