[18808] in s-news-athena
[S] predict function(clarification)
daemon@ATHENA.MIT.EDU (Lionel Siau)
Mon Aug 2 09:14:37 1999
Message-Id: <37A59954.1C76DE4@btinternet.com>
Date: Mon, 02 Aug 1999 14:12:52 +0100
From: Lionel Siau <cyls98@btinternet.com>
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Hi,
I've looked at the help and manual but there is no mention of how
predict treats the input data. Specfically, is the predict fn smart
enough to use only the response variables required from the incoming
dataframe and ignore the other variables store in it.
ozone.lm<-lm(ozone~temperature, data=air1)
predict(ozone.lm, air2)
where air1 and air2 are identical dataframes except for the values
inside them.
Lionel
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