[R] Logistic Regression woes

[Clayton Springer]

Hi All,

When I tried to do logistic regression and I got the following messages:

>  SampledW.glm.ALL <- glm (V1 ~ ., family = binomial, data = SampledW)
Warning messages: 
1: Algorithm did not converge in: (if (is.empty.model(mt)) glm.fit.null else glm.fit)(x = X, y = Y,  
2: fitted probabilities numerically 0 or 1 occurred in: (if (is.empty.model(mt)) glm.fit.null else glm.fit)(x = X, y = Y,  

The dataset in question has 2 classes and 80 features, and there are a few features which are collinear.

What could my source of trouble here?

Clayton
 
-- 
Clayton Springer, Ph. D.
Sandia National Laboratories                      csprin at ca.sandia.gov
Biosystems Research Department                    (925) 294-2143
P.O. Box 969, MS 9951                fax:         (925) 294-3020
Livermore, CA, 94551-0969

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