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st: generate multi-level dummy
From
"Delahanty, Ryan" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: generate multi-level dummy
Date
Fri, 22 Oct 2010 09:50:03 -0500
Hello,
We have a very high dimensional dataset. There are several categorical variables for which we need to get unique ORs for each combination. For example:
Var1=1,2,3...n
Var2=1,2,3...m
We need to generate all n x m categories for logistic regression. So our logistic regression can take the form:
Logistic y 11 12 13 ... 1m...21 22 23...2n...nm
This way we can get ORs for all levels from 11 to nm.
What is the easiest way to generate a new dummy variable that has all of these combinations and is still unique?
Thanks,
Ryan
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