[R] Interaction term in anova - how it should be written in a manuscript table?

From: Witold Eryk Wolski <W.E.Wolski_at_ncl.ac.uk>
Date: Mon 21 Mar 2005 - 05:32:58 EST

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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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 05:40:04 2005

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