[R] Detect the presence of an object

Spencer Graves spencer.graves at pdf.com
Fri Jan 30 22:50:21 CET 2004

      Have you considered "exists" or "missing"? 

      hope this helps.  spencer graves

Francisco J Molina wrote:

>Is there a  function like "is.there" such that 
>is.there ( a ) returns TRUE is object 'a' is in the current environment and
>FALSE otherwise?
>Thank you.
>Francisco J. Molina
>R-help at stat.math.ethz.ch mailing list
>PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

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