[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.



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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