Hi,
I'm looking for an easy way to discretize factors in R
I've noticed that the lm function does this automatically with a nice
result.
If I have
group <- c("A", "B","B","C","C","C")
and run:
lm(result ~ x1 + group)
The lm function has split the group into separate binary variables {0,1}
before performing the regression. I now have:
groupA
groupB
groupC
Some of the other models that I want to try won't accept factors, so
they need to be discretized this way.
Is there a command in R for this, or some easy shortcut? (I tried
digging into the lm code, but couldn't find where this is being done.)
Thanks!
-N
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