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st: please help: -biprobit- initial values not feasible- r(1400)


From   Nirina F <fstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: please help: -biprobit- initial values not feasible- r(1400)
Date   Thu, 18 Jun 2009 07:44:24 -0400

Hello,

I am running :

local athrho=atanh(0)
constraint 1[athrho]_cons=`athrho'
qui biprobit ($x = $cont ) (outc = $x  $cont) if  ms==2 & q2=1 & t>=15
& t<=64 , constraint(1)

and I get an error message that my initial values not feasible.

Does anyone know how to fix this please?

I would very much appreciate your help.

Nirina
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