UMBRELLA: Stata module to perform O'Brien's Umbrella test

William D. Dupont () and W. Dale Plummer ()
Additional contact information
William D. Dupont: Vanderbilt University School of Medicine
W. Dale Plummer: Vanderbilt University School of Medicine

Statistical Software Components from Boston College Department of Economics

Abstract: umbrella performs O'Brien's (Biometrics, 1984) Umbrella Test (also known as O'Brien's Multiple Endpoints Test). It is used to test whether a continuous response vector differs between groups of subjects and may be used as a non-parametric alternative to Hotelling's T test. It is particularly useful when each dependent variable denotes an outcome in which higher values are better than lower values or vice versa.

Language: Stata
Requires: Stata version 10
Keywords: umbrella test; multiple endpoints; nonparametric (search for similar items in EconPapers)
Date: 2008-04-11
Note: This module may be installed from within Stata by typing "ssc install umbrella". Windows users should not attempt to download these files with a web browser.

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/u/umbrella.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/u/umbrella.sthlp help file (text/plain)
http://fmwww.bc.edu/ ... e/u/umbrella_auto.do sample do file (text/plain)
http://fmwww.bc.edu/ ... /u/umbrella_auto.log sample log file (text/plain)

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