st: I have a problem with xtgls hetero qnd serial correlation

[Rodrigo L�pez <rodrilopez88@hotmail.com>]

hy Statalist

I am phd student. I was running a xtgls estimation in Stata 7. After this 
Itried to test the Breusch-Pagan Statistic for cross-section independence in 
the residuals. I had a problem with that becuase my screen show 
me"correlation matrix of residuals is singular not possible with test. 
Thanks for help.

Rodrigo Lopez

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Descubre el mayor cat�logo de coches de la Red en MSN Motor. 
http://motor.msn.es/researchcentre/

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