st: alpha scale

[cbaylor@ucla.edu]

I'm creating a capitalism scale out of opinions on various economic  
issues.  Alpha creates a scale whose scores are the average of the  
scores that are not missing, provided you have at least two that are  
not missing.  How do I set up a capitalism variable so that it is  
equal to the alpha scale, where if the respondent answered all of the  
questions, capitalism takes on the average, but if a respondent only  
answered two, it substitutes the average of those two for the missing  
values?

Best,

Chris

*
*   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/