[R] coefficient of logistic regression

[John Fox]

At 11:54 AM 6/3/2003 +0300, orkun wrote:

>in logistic regression,
>I want to know that it is possible to get probability values of each 
>predictors by
>using following formula for each predictor one by one (keeping constant 
>the others)
><<< exp(coef)/(1+exp(coef)) >>>

Dear Ahmet,

This will almost surely give you nonsense, since it produces a fitted 
probability ignoring the constant in the model (assuming that there is 
one), setting other predictors to 0 and the predictor in question to 1. 
What is it that you want to do?

I hope that this helps,
  John

-----------------------------------------------------
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario, Canada L8S 4M4
email: jfox at mcmaster.ca
phone: 905-525-9140x23604
web: www.socsci.mcmaster.ca/jfox