Beta-binomial software ?? -Reply

Kirthi Kalyanam (KKalyanam@mailer.scu.edu)
Tue, 13 Jan 1998 18:10:28 -0800


I have written functions for the likelihoods of the following models:

1. Beta Bionomial (alpha, beta)
2. Beta Bionomial with spike at zero (alpha, beta, phi)
3. Beta Bionomial with covariates (alpha=3Dxb, beta)
4. Dirichlet Multinomial (alpha(i), l=3D=23 of outcomes, l>2)

I supply these functions to nlmin to obtain the maximum likelihood =
estimates.

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Kirthi Kalyanam, Ph.D. - Asst. Professor & Associate Director
Retail Management Institute & Retail Workbench Research Center
Leavey School of Business & Administration - Santa Clara University
500 El Camino Real, Santa Clara, CA 95053
TEL: 408.554.2705 FAX: =
408.554.5056
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>>> Joergen Holm Petersen BSA <jhp=40kubism.ku.dk> 01/13/98 03:32pm >>>
Does anyone know of Splus software for estimation in=20
the beta-binomial distribution (i.e., binomial distributed=20
data with a beta distributed probability)? I need to be able
to have the parameters of the beta distribution depend on=20
a covariate.

Please send responses to me directly, and I will the summary
for the news-list.

Thank you.

--=20
Jorgen Holm Petersen
Assistant professor
Department of Biostatistics =20
University of Copenhagen=20
Blegdamsvej 3 =20
DK-2200 Copenhagen N
DENMARK

Email: J.H.Petersen=40biostat.ku.dk
Phone: (+45) 35 32 79 05 =20

Fax: (+45) 35 32 79 07