help dirmul-------------------------------------------------------------------------------

Title

dirmul -- dirichlet multinomial regression

Syntax

dirmuldepvar[indepvars] [if] [in],group(varname)[options]

Description

dirmulfits the dirichlet-multinomial regression model. It is a parametric alternative to grouped conditional logit that allows for overdispersion. The data must be in the same format as for estimation withmultin.

Options

eqcorrSpecifies the parameterization in terms of the intraclass correlation coefficient

stmulUses the results from the grouped conditional logistic as starting values.

strhoSet a starting value for rho (must be between 0 and 1). This option applies only if you are using theeqcorroption.

var2Allows for the introduction of group level variables. These variables do not affect the choice probabilities.

pearsonreports the Pearson chi-squared statistic.

AuthorPaulo Guimaraes, Division of Research, University of South Carolina. Email: guimaraes@moore.sc.edu

ReferencesGuimaraes, P and Lindrooth, R. 2005. Dirichlet-Multinomial Regression Economics Working Paper Archive at WUSTL, Econometrics, n. 0509001 http://129.3.20.41/eps/em/papers/0509/0509001.pdf

Also see