[R] Interaction term in anova - how it should be written in a manuscript table?
Liaw, Andy
andy_liaw at merck.com
Sun Mar 20 21:44:58 CET 2005
I'd suggest a $\times$ b, as you'd find in most stat textbook.
Andy
> 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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