QGAMMA: Stata module to generate quantile-quantile plot for data vs fitted gamma distribution

Nicholas Cox

Statistical Software Components from Boston College Department of Economics

Abstract: qgamma plots the quantiles of a variable against the quantiles of a two-parameter gamma distribution with a shape parameter and a scale parameter. Fitting is done quietly by gammafit, which should be installed separately. These programs all require Stata 8. Also included is the previous version, now renamed as qgamma4, which may be used in Stata 4 through 7. Estimation may be performed using gamma4, available as part of the gammafit package. Note: there is no connection between this package and official Stata command gamma.

Language: Stata
Requires: Stata version 8.0 (4.0 for pgamma4)
Keywords: graphics; gamma distribution; quantile-quantile plots (search for similar items in EconPapers)
Date: 1998-03-03, Revised 2011-05-17
Note: This module may be installed from within Stata by typing "ssc install qgamma". 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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Citations: View citations in EconPapers (2)

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/q/qgamma.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/q/qgamma.hlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/q/qgamma4.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/q/qgamma4.hlp help file (text/plain)

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