Dear R-help, I have used the regsubsets function from the leaps package to do subset selection of a logistic regression model with 6 independent variables and all possible ^2 interactions. As I want to get information about the statistics behind the selection output, I´ve intensively searched the mailing list to find answers to following questions:
1. What should I do to get the statistics behind the selection (e.g. BIC)? summary.regsubsets(object) just returns "*" meaning "in" or " " meaning out. For the plot function generates BICs, it is obviously that these values must be computed and available somewhere, but where? Is it possible to directly get AIC values instead of BIC? 2. As to the plot function, I´ve encountered a problem with setting the ylim argument. I fear that this (nice!) particular plot function ignores many of these additional arguments. How can I nevertheless change this setting? 3. For it is not explicitly mentioned in the manual, can I really use regsubsets for logistic regression? Thanks a lot for your help, I hope these questions aren´t too general. Best wishes Markus Brugger _________________________________________________________________ Sie suchen E-Mails, Dokumente oder Fotos? Die neue MSN Suche Toolbar mit [[trailing spam removed]] ______________________________________________ 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 and provide commented, minimal, self-contained, reproducible code.
