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st: observations missing

From   Seema Bhatia <[email protected]>
To   [email protected]
Subject   st: observations missing
Date   Wed, 5 Sep 2007 17:41:51 +0100

Dear Statalist

I am estimating a Heckman type model in order to calculate the Inverse Mills 
Ratio. The model is fine when i do the probit but then curiously, when I 
want to generate the Inverse Mills, at every step I get the message 40 
missing values generated, although it generates all the IMR values and in 
the data editor I find no missing values. Any idea what might be going on 
here and how I could rememdy this?

Many thanks

Seema Bhatia-Panthaki 

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