Does it mean that regsubsets doesn't work with categorical variables?
It's because I'm trying the following and I don't know what happens. Any
help would be appreciated.
varin <- data.frame(v1,v2,...,v7, factor1,..., factor4)
Dependent variable: height
Then:
eu.subsets <- regsubsets(varinc , height,
method=c("exhaustive"),nvmax=3,nbest =1)
It gives me this errror:
Error en leaps.setup(x, y, wt = weights, nbest = nbest, nvmax = nvmax, :
character variables must be duplicated in .C / .Fortran
By the way, if you introduce weights in regsubsets, is the same as doing
some kind of robust regression?
Thanks, u...@host.com
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