glm.fit: "fitted probabilities numerically 0 or 1 occurred"
On Tue, 11 Mar 2008, Werner Wernersen wrote:
Hi, could anyone explain to me what this warning message exactly means and what the consequences are? Is it due to the fact that there are very extreme observations / outliers included or what is the reason for it?
See MASS4 pp.197-8. (Assuming this is a binomial GLM: you did not say.)
Thanks so much, Werner
Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595