[R] help with predict in stats4
gabraham at csse.unimelb.edu.au
Sun Dec 14 07:57:26 CET 2008
David Kaplan wrote:
> We're using stats4 for a logistic regression. The code is
> chdreg.logit2 <- glm(chd ~ age + sex, family = binomial)
> oddsratios <- coef(chdreg.logit2)
> # Calculate model predicted values
> pred <- predict(chdreg.logit2,type="response")
> The glm part runs fine, and up to now so has the predict function.
> However, now we're getting the following error
> Error in function (classes, fdef, mtable) :
> unable to find an inherited method for function "predict", for
> signature "glm"
> Any thoughts about why this seems to now be appearing.
> Thanks in advance.
Just a guess, but perhaps you've loaded some other package which
redefines predict() in an incompatible way?
Dept. CSSE and NICTA
The University of Melbourne
Parkville 3010, Victoria, Australia
email: gabraham at csse.unimelb.edu.au
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