[R] saving AIC of intermediate models in step

Hi all, I'm fitting GLM's using the step or stepAIC procedures and I would like to save the AIC of the intermediate models. I would appreciate very much information about how todo this. Best wishes Germán López __ R-help@stat.math.ethz.ch mailing

[R] Error message in polr

Dear members of the list, I'm fitting ordinal regressions using polr, and in some models I get the error copied below. Dependent variable is an ordered factor of bird abundance categories, and predictors are continuous habitat variables. > ro6 <- polr(formula = abun ~ InOmbrot + Oliva.OC + To

[R] Help on model selection using AICc

very much appreciated German Lopez __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

[R] model selection based on AICc

Dear members of the list, I'm fitting poisson regression models using stepAIC that appear to be overparametrized. I would like to know if there is the possibility of fitting models by steps but using the AICc instead of AIC. Best wishes German

[R] model selection based on AICc

Dear members of the list, I'm fitting poisson regression models using stepAIC that appear to be overparametrized. I would like to know if there is the possibility of fitting models by steps but using the AICc instead of AIC. Best wishes German