st: hotellings t-sq. test question

[Nicholas Potter <npotter@unm.edu>]

Hi, haven't done much with stata before, but I have a paired sample data 
set.  Problem is that the sample resembles a chi-sq distribution rather 
than a normal distribution (can't assume normality).  Hence I was 
thinking that using a Hotelling's T-sq. test would be more appropriate 
that a paired-sample t-test.  I need the test to compare means between 
the pairs, but am uncertain of how to use the by(groupvar) option.

right now I have:

egen grp_a = group(emp_2005);
hotelling emp_2003 emp_2005, by(grp_a);


but I'm fairly sure that the group division is not what I am looking for.

Any help would be much appreciated.

Thanks

-Nick


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