[R] Pre-model Variable Reduction

Hans W. Borchers hwborchers at gmail.com
Tue Dec 9 13:33:16 CET 2008

Harsh <singhalblr <at> gmail.com> writes:

> Hello All,
> I am trying to carry out variable reduction. I do not have information
> about the dependent variable, and have only the X variables as it
> were.
> ...
> I looked for other R packages that allow me to do variable reduction
> without considering a dependent variable. I came across 'dprep'
> package but it does not have a Windows implementation.

I doubt that you will find what you are longing for, but: There is a Windows
version available at the "Homepage of the drep package" at
This version 2.0 can be loaded without errors into R 2.8.0 though it appears 
not to be fully compliant with the tests on CRAN.

> Moreover, I have a dataset that contains continuous and categorical
> variables, some categorical variables having 3 levels, 10 levels and
> so on, till a max 50 levels (E.g. States in the USA).
> Any suggestions in this regard will be much appreciated.
> Thank you
> Harsh Singhal
> Decision Systems,
> Mu Sigma, Inc.

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