st: how to select model in xtpcse , corr(ar1)

[ghislain dutheil <gdutheil@gmail.com>]

Dear members,

I want to compare two models 
one made with :
xtpcse x y z,corr(ar1)
the other with :
xtpcse x y w,corr(ar1)

xtpcse doesn't return AIC nor BIC nor e(ll), i don't really understand why but it seems that is normal. How can i choose between the two ?

thanks

Ghislain


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