Hello. In SPLUS I am used to comparing nested models in gam using the
anova function.  When I tried this in R this doesn't work (the error
message says that anova() doesn't recognise the gam fit).  What must I
do to use anova with gam?  To be clear, I want to do the following:

fFit1<-gam(y~x,.)

fit1<-fam(y~s(x),.)

 

anova(fit2,fit1,test="F")

 

Thanks.

 

Bill Shipley

 


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