francogrex wrote: > > out <- glm(response~Var1+Var2+Var3..,family=binomial,data=mydata) > summary(out) > stepAIC(out) > anova(out, test='Chisq') > I understand that stepAIC is used to select the model with the lowest AIC > (the best model) but can someone explain what is the purpose of doing the > anova: anova(out, test='Chisq')? What extra information does it bring? > Thanks >
"out" is of class glm (and lm, if that matters). So we have anova working on a glm class, which is documented in anova.glm. You should be aware that this anova depends on the order of you Varx, so be cautious. Dieter -- View this message in context: http://r.789695.n4.nabble.com/anova-of-glm-output-tp2528336p2528354.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
