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st: heckprob vce command


From   "Bo Cutter" <wcutter@ucla.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: heckprob vce command
Date   Sun, 28 Jul 2002 18:53:47 -0700

In the heckprob command instead of estimating rho (the correlation in the
bivariate normal), the procedure estimates
 atanh(rho).  However, the coefficient for rho and atanh(rho) are reported.
Can anybody tell me if the reported vce matrix is for rho or for atanh(rho)
?

Bo Cutter

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