TRPOIS0: Stata module to estimate zero-truncated Poisson regression models

Joseph Michael Hilbe

Statistical Software Components from Boston College Department of Economics

Abstract: trpois0 estimates maximum likelihood zero-truncated Poisson regression models using Stata's ml method for estimation. A 0-truncated Poisson model is appropriate when modeling count data which does not have values of 0. This is to be distinguished from data sets without 0 values, but which may have 0's. For example, length of hospital stay data (LOS) begins with patients having a LOS of 1. 0 values are not allowed. This is a situation where a truncated model is appropriate. trpois0 implements the cluster, robust, and score options.

Language: Stata
Date: 1997-12-17

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/t/trpois0.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/t/trpoislf.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/t/trpois0.hlp help file (text/plain)

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