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st: median-test


From   "Andreas Aschbacher" <aa_surf@gmx.at>
To   statalist@hsphsun2.harvard.edu
Subject   st: median-test
Date   Wed, 18 Feb 2004 16:12:56 +0100 (MET)

Dear fellows !

I am not sure about median - test with command (see) below:
I have two columns:

x -             y-    column
/ x-column contains ID-number  /
ID - numbers are :I090,M010,M013,M020,I010,M012
/ y-column is count-value  /
I090	94.97    1... observation
M010	117.62  2.... observation
M010	64.83
M013	91.39
M010	138.69
M010	39.77
M020	39.05
M010	56.98
I010	87.51
M010	97.36
M010	33.96
M012	74.28
....  there are much more observations with same ID-numbers

I want to use following command:
median   varname [weight] [if exp] [in range] , by(groupvar) [ exact
medianties(drop | above | below | split) ]

in order to make median test in the following groups:
I090,M010,M013,M020,I010,M012
my Nullhypothesis should be: equal medians for all groups
any help will be appreciated very much
andreas aschbacher

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