Hello, I am using regsubsets function package 'leaps' and want to let it regress on every 2 variables. I wanted to leaps but wasn't able to control the size of variables. So I decided to use regsubsets. But I notice that if I set nvmax=2, it will regress on 3 variables instead of 2; and when my nvmax=1, it regresses on 2, which is weird to me. I wonder whether my setting was incorrect or my understanding on nvmax was wrong. Thank you. CZ -- View this message in context: http://r.789695.n4.nabble.com/nvmax-in-REGSUBSETS-function-tp2956926p2956926.html Sent from the R help mailing list archive at Nabble.com.