st: How to produce adjusted R-square in 3SLS?

["Song" <raravise@gmail.com>]

Dera all,

I estimated a system of two equations by 3SLS (reg3). Stata ouptut offers 
only R-square, not adjusted R-square. Does STATA provide adjusted R-Square 
for reg3? How can I get adjusted R-square with 3SLS?

Thank you very much,
Reo. 
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