Re: [R] Generating Interaction Factors (combinations of Data Frame columns)

From: Rolf Turner <rolf_at_math.unb.ca>
Date: Mon 21 Mar 2005 - 09:34:38 EST

?model.matrix



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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Mon Mar 21 09:38:06 2005

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