Why am I getting “algorithm did not converge” and “fitted prob numerically 0 or 1” warnings with glm?

If you look at ?glm (or even do a Google search for your second warning message) you may stumble across this from the documentation: For the background to warning messages about ‘fitted probabilities numerically 0 or 1 occurred’ for binomial GLMs, see Venables & Ripley (2002, pp. 197–8). Now, not everyone has that book. But … Read more