Problems with try() inside foreach() in R

Question

I am trying to use the try() function to deal with errors that are occurring in my parallelised for loop:

results <- foreach (i = 1:2, .errorhand         


        

Answer 1

You can use tryCatch and deal with the error appropriately. Here the error is ignored (returning NULL)

results <- foreach (i = 1:2) %dopar% {
    res <- tryCatch({
        myfun(i)
    }, error=function(e) NULL)
}

or just using the builtin .errorhandling='remove' as you have, without the try should remove the errors already.