[R] glm and overdispersion

[Luca Scrucca]

I recently uploaded a package to CRAN called `dispmod' which provides
functions for modelling dispersion in GLM.
In particular, the function `glm.binomial.disp' fits overdispersed
binomial logit models following the approach discussed by Williams, D. A.
(1982), Extra-binomial variation in logistic linear models, Applied
Statistics, 31, 144-148.

I hope this can help you.

Luca

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| Dr. Luca Scrucca                                                      |
| Dipartimento di Scienze Statistiche      tel. +39 - 075 - 5855278     |
| Universita' degli Studi di Perugia       fax. +39 - 075 - 43242       |
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| 06100 PERUGIA  (ITALY)                                                |
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| E-mail:   luca at stat.unipg.it                                          |
| Web page: http://www.stat.unipg.it/luca                               |
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