Hello, Thanks for your answer. I will try this function to see if it gives equivalent results that those obtained with polr()+dropterm() (in a case where polr() works). Many thanks -- View this message in context: http://r.789695.n4.nabble.com/likelyhood-maximization-problem-with-polr-tp2528818p3043137.html Sent from the R help mailing list archive at Nabble.com.
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