Would using the subset argument that is available in many functions
(eg lm) achieve what you want?
On 30/09/06, Anupam Tyagi [EMAIL PROTECTED] wrote:
Is there a way to set NA values in R, without changing the dataframe? I would
like to use different combinations of non-response values, as if they were NA
for some of the computations. I don't want to change the dataframe each time I
have to do this?
Anupam.
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David Barron
Said Business School
University of Oxford
Park End Street
Oxford OX1 1HP
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