[R] Remove warnings.

[hadley wickham]

Why don't you just suppress the warning messages you are not interested in?

?suppressWarnings

Hadley


On Tue, Oct 14, 2008 at 7:59 AM,  <rkevinburton at charter.net> wrote:
> I have a function that could possibly generate warnings in a loop. What I want is to report the warnings (warnings()) then clear out the last.warning object so that if there is a call without warnings I will not see the previous warning.
> Some example code:
>
> generatewarning <- function(s)
> {
>        warning(s)
> }
>
> loop <- function(f=TRUE)
> {
>    if(f)
>    {
>        for(.index in 1:10)
>        {
>                if(.index %% 2)
>                {
>                        generatewarning(sprintf("%d warning", .index))
>                }
>        }
>     }
> }
>
> loop()
> warnings("TRUE")
> loop(FALSE)
> warnings("FALSE")
> loop()
> warnings("TRUE")
>
> Notice that the call to "warnings("FALSE")" still reports the warnings from the previousely generated warnings. I want to "clear" this set since it has already been reported. Is there a way to do this?
>
> Thank you.
>
> Kevin
>
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>



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