st: Generate all combinations

["David Bruce Mcclintick" <mcclin47@msu.edu>]

I have data in a single list, all unique observations with numerical values. 
What I want is a way to return all possible 5 term combination sums from 
this list. Additionally, I need to accomplish this in multiple instances 
with other lists of varying size, but still retaining the 5 term combination 
rule. How can I return these results, and do so in a viewable form?

*
*   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/