If you have read the table as a data frame say, DF then the following should 
work
 
DF[DF==0]<-NA

--- On Tue, 16/9/08, Amit Patel <[EMAIL PROTECTED]> wrote:

From: Amit Patel <[EMAIL PROTECTED]>
Subject: [R] HI
To: r-help@r-project.org
Date: Tuesday, 16 September, 2008, 7:02 PM

Does anyone know an easy way to convert all the zero values in a imported csv
table into NA's



      
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