[R] keep information on the number of warnings

[David Winsemius]

On Jul 31, 2014, at 9:26 AM, Luis Borda de Agua wrote:

> I’m using R 3.1.0 in OS X 10.9.4 (Mavericks)
> 
> I’m running a function Y that calls a function X which occasionally generates a warning. 
> Say that I call the function X 1000 times, and out of these 1000 times I get the following message:
> 
> "There were 36 warnings (use warnings() to see them)"
> 
> How can I store the number 36 in a variable in function Y?
> 
> In other words, how can I extract the information on the number of warnings generated?

length(warnings())

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David Winsemius
Alameda, CA, USA