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st: problem with the F test


From   <[email protected]>
To   [email protected]
Subject   st: problem with the F test
Date   Tue, 21 Mar 2006 18:28:15 -0500

I have a problem with the F test when I select the option ROBUST for the estimation .

I'm just running OLS regressions and when I select "robust" for the estimation of the variances the value of the F test is missing !  (I have 72 obs and 6 regresors)

If I don't select that option then I don't have the problem in the same estimation.

What can it be?


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