From: Liaw, Andy <andy_liaw_at_merck.com>

Date: Mon 21 Mar 2005 - 07:44:58 EST

R-help@stat.math.ethz.ch mailing list

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 07:49:45 2005

Date: Mon 21 Mar 2005 - 07:44:58 EST

I'd suggest a $\times$ b, as you'd find in most stat textbook.

*> From: Witold Eryk Wolski
**>
*

> Dear Rgurus,

*>
**> Interaction terms in the linear models function lm are
**> specified by the
**> colon :
**> eg: x ~ a + b + a:b
**>
**> a shortcut for the above is:
**> x ~ a*b
**>
**> the output if calling anova on the lm object will be the same
**> in both cases
**>
**> a ....
**> b ....
**> a:b ...
**> Resdiuals ...
**>
**> What I am wondering is how the interaction term (a:b) given
**> above should
**> be written in a table in an manuscript?
**>
**> a ) a*b
**> b ) a$\cdot$ b
**> c ) a:b
**> d) ....
**>
**> Cheers Eryk.
**>
**> ______________________________________________
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**> PLEASE do read the posting guide!
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**>
**>
**>
*

R-help@stat.math.ethz.ch mailing list

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 07:49:45 2005

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