Re: [R] Problem with ordered probit model in MASS

From: David Duffy <>
Date: Fri 26 Jan 2007 - 06:38:56 GMT

Justin Bem wrote:

> I got this message, while using the polr function in MASS
> Error in polr(EQ, don, subset = (cote != 0), method = "probit", na.action = na.omit) :
> attempt for find suitable starting values failed
> how can I initialise starting values ?

You might try running an ordered logistic in lrm() and using those estimates as starting values (if it runs OK).

David Duffy. mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Fri Jan 26 17:44:36 2007

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