[R] zero replacement

[Michael Camann]

AARRGGHH!  Sometimes it's the simple things that are particularly frustrating, 
especially late at night....

Can anyone suggest a simple means for replacing all of the zero values in a 
matrix with NANs?  I ended up writing an awk script to massage the input file, 
which works, of course, but is rather an inelegant blunt instrument.  I'd 
prefer an R operation.  I'm certain that I'm missing something obvious here....

--Mike

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Michael A. Camann            mac24 at axe.humboldt.edu
Assistant Professor of Zoology        Voice: 707-826-3676
Dept. of Biological Sciences        Fax: 707-826-3201
Humboldt State University
Arcata, CA 95521-8299

    http://www.humboldt.edu/~mac24/camann.html
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