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Re: [Orgmode] Re: [babel] R questions


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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