[R] validation of logistic regression model with weighted presences and absences

Hello everyone! I want to validate logistic regression models of species distrubution data where presences and absences are weighted differently. I used lrm from Design package but unfortunately, validate.lrm ignores weights in the validation process. Has anyone an idea (package, code) how I can d

[R] lrm -interaction without main effect-error message

I need the lrm function since I have to validate my models via bootstrapping (validate.lrm). Many thanks! Eva -- Eva Mosner Lilienstraße 9 35043 Marburg 06421-8400886 0151-17867488 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/li