st: R squared for constrained regression

[Vadim Grinevich <v.grinevich@jbs.cam.ac.uk>]

Dear Stata community,

As you know when you run a constrained regression, the output statistics 
does not include R squared. However, I do need at least some indication of 
it in order to compare my results with those from other studies using 
similar sort of constraints.

To sum up, is there any way to get indication of R squared for constrained 
regression (cnsreg command)

I'd very appreciate your help!

Vadim
*
*   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/