st: t-test

[P chrisman <peggyc@u.washington.edu>]

Hi All,

Is there a way to do a t-test of the difference in means for an 
unordered categorical variable. I have an unordered categorical variable 
and I want to compare the means between group 0 (the reference group) 
and groups 2, 3, 4 individually. I initially thought to do a regression 
using the xi: regress command with i.unordered categorical variable, but 
I am unsure if this is equivalent to separate t-tests for group 0 
compared to each group 2, 3 and 4 separately. Any comments/suggestions 
would be greatly appreciated.
Thank you,

Peggy
University of Washington
Graduate Student, Biostatistics

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/