[repost ]Convergence Failures in Logistic Regression

original:http://www2.sas.com/proceedings/forum2008/360-2008.pdf 1 Paper 360-2008 Convergence Failures in Logistic Regression Paul D. Allison, University of Pennsylvania, Philadelphia, PA ABSTRACT A frequent problem in estimating logistic regression models is a failure of the likelihood maximization algorithm to converge. In most cases, this failure is a consequence of data patterns known as complete or quasi-complete separation. For these [...]



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