[R] logistic regression

[Kevin Cummins]

I have a system with a binary response variable that was hypothesized to 
follow a simple logistic function. The relationship between the continuous 
independent variable and the logit is clearly not monotonic. I have two 
questions. 1) Can anyone recommend a reference that describes my modeling 
options in this case, and 2) what facilities does R have to deal with this 
situation?

Thanks,
Kevin Cummins
School of Medicine
University of California San Diego