ZICEN: Stata module to estimate a finite mixture model of a degenerate distribution with mass at zero and one or two censored (Tobit) normals

Marcelo Coca Perraillon ()
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Marcelo Coca Perraillon: University of Chicago

Statistical Software Components from Boston College Department of Economics

Abstract: zicen estimates a zero-inflated censored normal model, which is a finite mixture model made of a degenerate distribution with mass at zero and one or two censored (Tobit) normals. In general, finite mixture models are difficult to estimate since the likelihood may contain multiple maxima and non-concave regions.

Language: Stata
Requires: Stata version 12
Keywords: zero-inflation; finite mixture; Tobit; censored data (search for similar items in EconPapers)
Date: 2014-03-15, Revised 2014-06-04
Note: This module should be installed from within Stata by typing "ssc install zicen". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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http://fmwww.bc.edu/repec/bocode/z/zicen.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/z/zicen0.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/z/zicenec.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/z/zicen2_lf.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/z/zicen2_p.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/z/zicen3_lf.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/z/zicen3_p.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/z/zicenlc.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/z/zicen.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/s/simudata.dta sample data file (application/x-stata)

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