From: kathy mutambanengwe on 21 Jul 2010 18:36 Hi, I am doing a logistic regression with one continuous covariate and i get a message in my output saying "Measures of association between the observed and predicted values were not calculated because the predicted probabilities are indistinguishable when they are classified into intervals of length 0.002" What could be the cause of this? Regards, Kathy
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