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Re: st: RE: omega statistic


From   David Airey <david.airey@vanderbilt.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: omega statistic
Date   Wed, 19 Mar 2008 11:35:56 -0500

.

Hi Tony,

Omega2 by Phil Ender is a measure of effect size following ANOVA. Amresh was interested in the logit model.

-Dave


On Mar 19, 2008, at 11:21 AM, Lachenbruch, Peter wrote:

There is a package omega2 that can be used after anova. It was written
by Phil Ender.

Tony

Peter A. Lachenbruch
Department of Public Health
Oregon State University
Corvallis, OR 97330
Phone: 541-737-3832
FAX: 541-737-4001


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Hanchate,
Amresh
Sent: Wednesday, March 19, 2008 7:40 AM
To: statalist@hsphsun2.harvard.edu
Subject: st: omega statistic

Hi all:
I was wondering if there is a Stata implementation of the "omega
statistic" (Silber, Rosenbaum and Ross (1995)) "for comparing the
contributions of subsets of predictors in a multiple regression model
(including generalized linear models, survival models, etc.)".

Silber, J. H., Rosenbaum, P. R. and Ross, R. N. (1995) Comparing the
Contributions of Groups of Predictors: Which Outcomes Vary with
Hospital Rather than Patient Characteristics? JASA 90, 7-18.

Are there other similar methods that Stata can estimate? I am
particularly interested in logistic regression case.

Thanks in advance,
Amresh Hanchate

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--
David C. Airey, Ph.D.
Pharmacology Research Assistant Professor
Center for Human Genetics Research Member

Department of Pharmacology
School of Medicine
Vanderbilt University
Rm 8158A Bldg MR3
465 21st Avenue South
Nashville, TN 37232-8548

TEL   (615) 936-1510
FAX   (615) 936-3747
EMAIL david.airey@vanderbilt.edu
URL   http://people.vanderbilt.edu/~david.c.airey/dca_cv.pdf
URL   http://www.vanderbilt.edu/pharmacology



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