RE: Probabilistic model

From: Vladimir Piotrovskij Date: May 17, 2005 technical Source: cognigencorp.com
From: "Piotrovskij, Vladimir [PRDBE]" VPIOTROV@PRDBE.jnj.com Subject: RE: [NMusers] Probabilistic model Date: Tue, May 17, 2005 9:01 am Leonid, Each time I deal with ordered categorical responses with more than 3 - 4 categories I observe the same behavior as you describe. What I recommend is to combine some categories to make the objective fuction surface less flat. Best regards, Vladimir -------------------------------------------------------------------- Vladimir Piotrovsky, PhD Research Fellow Global Clinical Pharmacokinetics & Clinical Pharmacology J&J Pharmaceutical Research and Development Beerse, Belgium
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May 19, 2005 Nick Holford Re: Probabilistic model