Noah Silverman wrote:
That makes sense.
I my data is already nominal, I need to "expand" a single column into
several binary ones.
Is there an easy function to do this in R, or do I need to create
something from scratch? (If I have to create my own, any suggestions?)
Thanks!
-N
Hi Noah,
read up on the "contrasts" and the "model.matrix" functions.
Although if you use the kernlab package for SVMs, factors get treated in
this way by default, you just need to use the formula interface.
Bernd
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