mastropi at uwalumni.com
Fri Jul 5 02:37:03 CEST 2002
Define the variable as a factor.
Suppose you have a response 'y' and a regressor 'x' that has the binary
variables, then do:
lm(y ~ as.factor(x));
This is also valid for any categorical variable, not only for binary variables.
The function factor() may also be of interest to you.
At 01:27 PM 4/7/2002 -0700, elizabeth pino wrote:
> Can you tell me how to do a regression
> that include a binary variable in the function lm
>or some other?.
> thank you for any help.
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