[R] regsubsets() [leaps package] - please share some good examples of use

[agent dunham]

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, user at host.com




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