[R] Changing predictor order in lm()

From: Andrew Robinson <A.Robinson_at_ms.unimelb.edu.au>
Date: Sun 19 Feb 2006 - 11:43:09 EST


Dear community,

can anyone provide a snippet of code to force the lm() to fit a model with terms in the formula in an arbitrary order? I am interested in something like:

lm(y ~ A * B + C, data=data)

where the interaction of A and B should be in the formula before C. My goal is to simplify my presentation of models using the anova() statement.  I have found that this should be possible using the terms.formula() function, but if anyone has an example that would be much appreciated.

Cheers

Andrew

Andrew Robinson

Senior Lecturer in Statistics                       Tel: +61-3-8344-9763
Department of Mathematics and Statistics            Fax: +61-3-8344 4599
University of Melbourne, VIC 3010 Australia Email: a.robinson_at_ms.unimelb.edu.au Website: http://www.ms.unimelb.edu.au

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