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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