[R] Interaction

Jeff Newmiller jdnewmil at dcn.davis.CA.us
Tue Oct 30 03:09:15 CET 2012


I thought addition was commutative. I am puzzled by your question.
---------------------------------------------------------------------------
Jeff Newmiller                        The     .....       .....  Go Live...
DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live Go...
                                      Live:   OO#.. Dead: OO#..  Playing
Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
/Software/Embedded Controllers)               .OO#.       .OO#.  rocks...1k
--------------------------------------------------------------------------- 
Sent from my phone. Please excuse my brevity.

Silvano Cesar da Costa <silvano at uel.br> wrote:

>Hi,
>
>I'm fitting a model with 3 variables: A, B and SNP.
>The response variable is Y.
>
>I would like fit the following model, in this order:
>
>Y ~ A + B + A*B + SNP
>
>In general, the R sets of the form:
>
>Y ~ A + B + SNP + A*B
>
>How do this?
>
>
>---------------------------------------------
>Silvano Cesar da Costa
>
>Universidade Estadual de Londrina
>Centro de Ciências Exatas
>Departamento de Estatística
>
>Fone: (43) 3371-4346
>
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.




More information about the R-help mailing list