R help - Sep 2011 - Linear regression interaction terms

Hello I performed a linear regression, my equation is Y = âo+ â1A + â2B +
â3AB.
Is there a way to separate interaction terms, say â3AB and plot it against a
certain variable?
Thanks, Andrew

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Andrey A <avakoa <at> gmail.com> writes:
> 
> Hello I performed a linear regression, my equation is Y = ?o+ ?1A + ?2B +
> ?3AB.
> Is there a way to separate interaction terms, say ?3AB and plot it against
a
> certain variable?
> Thanks, Andrew
  Not quite sure what you mean here.  Possibly something like

L1 <- lm(y~A*B,data=mydata)
p <- predict(L1,type="terms",terms="A:B")

 etc

?