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Re: st: RE: identifying perfect outcome predictor

From   Richard Williams <>
To, <>
Subject   Re: st: RE: identifying perfect outcome predictor
Date   Mon, 05 May 2008 18:13:47 -0500

At 01:13 PM 5/5/2008, Newson, Roger B wrote:
I personally use -glm- (with the options -link(logit) family(bin)-)
instead of -logit-. That way, the offending parameters are allowed to
"converge" to plus or minus infinity without an error message. And the
guilty parameters are then displayed for all to read.

I hope this helps.

Interesting. Now, can that be considered a "bug" or a "feature" of glm? My own oglm and gologit2 programs give these phenomenally high standard errors when you have perfect outcome predictors, mostly because I've never figured out how to trap such situations and issue a warning or error message.

Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME: (574)289-5227
EMAIL: Richard.A.Williams.5@ND.Edu

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