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From: | Thomas S. Dye |
Subject: | Re: [Orgmode] Re: [babel] R questions |
Date: | Tue, 8 Dec 2009 06:00:58 -1000 |
Aloha Sebasien, On Dec 7, 2009, at 11:50 PM, Sébastien Vauban wrote:
But what's a "NA" value in general? Is 0 always a meaningful value as numeric? Context-sensitive..
NA is a logical constant of length 1 which contains a missing value indicator. Whether or not 0 is a meaningful value as numeric depends on your data and the questions you are asking of it. You don't ask this question, but if I read this thread correctly and you are trying to workaround a data input problem with R in Org-babel, then replacing missing values with 0 in a numeric context to get around the Org-babel problem is NOT a good idea.
HTH, Tom
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