Re: [R] Factor function

From: Lisa <>
Date: Mon, 25 Apr 2011 14:03:15 -0700 (PDT)

Thank you for your reply again. I really know that NA is not "NA". I just want to figure out how to remove "NA" from the levels. Thanks again.

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Received on Mon 25 Apr 2011 - 21:15:09 GMT

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