PPP: Stata module to plot pre- and post-test probabilities after diagnostic testing

Victoria Nyawira Nyaga ()
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Victoria Nyawira Nyaga: Belgian Cancer Center, Brussels

Statistical Software Components from Boston College Department of Economics

Abstract: ppp is an immediate command to plot a nomogram-like graph showing how pre-test probability evolves to post-test probability after one or more diagnostic tests. The method is based on Bayes’ theorem and is similar in spirit to the fagan plot, but allows sequential tests (“triages”).

Language: Stata
Requires: Stata version 10.1
Keywords: probability; tests; Bayes; graphics (search for similar items in EconPapers)
Date: 2025-09-04
Note: This module should be installed from within Stata by typing "ssc install ppp". 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/p/ppp.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/p/ppp.sthlp help file (text/plain)

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