Hi,
I have data with a binary variable (0 and 1) that splits my data set into two matched groups (one group of original observations and one control group), therefore the samples are not independent.
group1 0 varname1 ...
group2 1 varname1 ...
Since some of the contained variables are not normally distributed I´d like to use a non-parametric test in order to test for the median difference of some variables between the two dependent groups.
The above mentioned signrank -- Equality tests on matched data seems to be the correct test, but unfortunately the syntax doesn´t allow the option by(groupvar), like e.g. ttest or ranksum do.
signrank varname = exp [if] [in]
Is there any (advanced) solution for that, or do I have to rearrange the data in a spreadsheet outside Stata?
Thanks for help and best,
Rico
--
Beste Grüße
Rico Baumann
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