Hello,
I am trying to do a logistic regression and have one predictor variable
(x) that is ratio and two predictor variables (y and z) that are
categorical. These have three levels each which I have called "High",
"Medium" and "Low".
My question: do I need to use a numerical coding scheme for the
categorical variables as required by some statistical software packages,
with some sort of numeric dummy-variable coding?
I am using:
glm(binvar~x+y+z, family=binomial(link="logit"))
Thanks,
Ravi Kulkarni
--
View this message in context:
http://n4.nabble.com/Coding-of-categorical-variables-for-logistic-regression-tp1694250p1694250.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
