[R] How to use ifelse without invoking warnings

[Sarah Goslee]

If you are positive the warnings don't matter for your application,
you can disable them: see ?options for details of warn.

But that can be dangerous, so be careful!

Sarah

On Thu, Oct 7, 2021 at 1:21 PM Ravi Varadhan via R-help
<r-help using r-project.org> wrote:
>
> Hi,
> I would like to execute the following vectorized calculation:
>
>   ans <- ifelse (k >= -1 & k <= n, pbeta(p, k+1, n-k, lower.tail = FALSE), ifelse (k < -1, 0, 1) )
>
> For example:
>
>
> > k <- c(-1.2,-0.5, 1.5, 10.4)
> > n <- 10
> > ans <- ifelse (k >= -1 & k <= n, pbeta(p,k+1,n-k,lower.tail=FALSE), ifelse (k < -1, 0, 1) )
> Warning message:
> In pbeta(p, k + 1, n - k, lower.tail = FALSE) : NaNs produced
> > print(ans)
> [1] 0.000000000 0.006821826 0.254991551 1.000000000
>
> The answer is correct.  However, I would like to eliminate the annoying warnings.  Is there a better way to do this?
>
> Thank you,
> Ravi
>
>
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>
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-- 
Sarah Goslee (she/her)
http://www.sarahgoslee.com