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st: about fhcomp

From   philender <>
Subject   st: about fhcomp
Date   Mon, 25 Aug 2003 09:18:02 -0700

-fhcomp- implements Fisher-Hayter pairwise comparisons.  It makes use
of -gsturng- and - sturng1- through -strung8- that were included with
-prcomp- (STB-47) written by John R. Gleason of Syracuse University.
It was written specifically for use in a research methods course that
uses the textbook "Experimental Design" by Roger E. Kirk.  Kirk makes
extensive use of the Fisher-Hayter approach in the text.

The help file for -fhcomp- seems to be missing several crucial pieces
of information including the citation to John R. Gleason's work noted
above.  The other necessary piece of information is that -fhcomp- is to
be used after the -anova- command.


 . anova y b
 . fhcomp b
 . fhcomp b, level(.99)

/* differences in b at a==3 */
 . anova y a b a*b
 . fhcomp b if a==3
 . fhcomp b if a==3, nu(36) sigma(7.6)

I apologize for the confusion caused by the help file and for the
missing citation.

Philip B. Ender
UCLA Department of Education
UCLA Academic Technology Services

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