[R] Modeling Binary x Binary Interactions with mlogit (and interpretation)

the changing sign of the coefficients when I change the reference level. This would imply that females always prefer the opposite of males. Clearly, this cannot be. I imagine that I am misinterpreting this issue and I would be grateful for any help on this. Best regards, Marcel -- Marcel Gerds, M.Sc

[R] Recoding -- test whether number begins with a certain number

with a 6 is labeled as agri. My problem is that I cannot find a test which I can use for that purpose. I would really appreciate any help on that subject. Thank you. Best regards Marcel Gerds __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman

[R] Choice Design -- partial profile

Dear R community, I have a question concerning the generation of an experimental design for discrete choice experiments (=choice based conjoint analysis, CBC). I understand that there is an article Design and Analysis of Choice Experiments Using R by Aizaki and Nishimura (available at