It's generally safer to use
as.numeric(as.character(variablename))
since it eliminates problems associated with factors.
- Phil Spector
Statistical Computing Facility
Department of Statistics
UC Berkeley
spec...@stat.berkeley.edu
On Wed, 12 Aug 2009, Daniel Malter wrote:
Hi you can use newvariable=as.numeric(variablename). This converts your
factors into numeric variables, but not always with the desired result. So
make sure that you check whether "newvariable" gives you what you want.
Otherwise recoding by hand is indicated.
Best,
Daniel
Noah Silverman-3 wrote:
Hi,
I'm training an SVM (C-classification from e1071 library)
Some of the variables in my data set are nominal. Is there some
easy/automatic way to convert them to numerical representations?
Thanks,
-N
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