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

From: David Duffy <David.Duffy_at_qimr.edu.au>
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.



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