Re: [R] request if a variable is defined

From: Gabor Csardi <csardi_at_rmki.kfki.hu>
Date: Tue, 04 Mar 2008 16:50:46 +0100

Bingo!

See ?exists

G.

On Tue, Mar 04, 2008 at 04:38:31PM +0100, Paul Hammer wrote:
> hi members,
>
> give it a function for requesting if a object, matrix, vector, variable
> or whatever already exists?
>
> e.g. if (*exists*(a) {print("yes") } else { print("no") }
>
> thanks
> paul
>
> [[alternative HTML version deleted]]
>
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-- 
Csardi Gabor <csardi_at_rmki.kfki.hu>    UNIL DGM

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Received on Tue 04 Mar 2008 - 15:53:45 GMT

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