help with predict in stats4
David Kaplan wrote:
Hi, We're using stats4 for a logistic regression. The code is chdreg.logit2 <- glm(chd ~ age + sex, family = binomial) summary(chdreg.logit2) oddsratios <- coef(chdreg.logit2) exp(oddsratios) # 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?
Gad Abraham Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham