Excellent --  gc() is exactly what i was looking for.

thanks
Carl

On 5/2/11 7:36 PM, Ben Haller wrote:


   Call gc() if you want.  Or just relax.  :->

Thanks for your help -- I'm not the least put out if someone wants to point out 
what a dummy I'm being.

   No worries, it confused me when I started, too.

Ben Haller
McGill University

http://biology.mcgill.ca/grad/ben/





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