Re: st: a couple questions about "mim"

[Richard Williams <richardwilliams.ndu@gmail.com>]

At 03:13 PM 10/24/2011, Haiyong Xu wrote:
> Hi there,
> I have two questions about "mim".
> 1. I used "estat store" after "mim: reg" model in Stata. It gave me an error
> msg of "last estimation results not found, nothing to store". Does that mean
> I can't use "estat" after "mim"? Thanks.
I wonder if you need the -storebv- option? See -help mim##replay-, 
and the warnings it gives about post-estimation commands after -mim-.
> 2. I used the following command
> mim, category(fit): ivregress 2sls cbcl_tot ${indv} (safe = total_crime),
> first
>
> But Stata didn't show me the first-stage result.
> Could anybody tell me why? Thanks.
Here is my guess (possibly wrong): A command can compute all sorts of 
intermediate results. -mim- isn't going to give you all those 
intermediate numbers. It is just going to give you the final 
estimates. My guess is that it doesn't even estimate a single set of 
coefficients for the first stage results, i.e. it may compute, say, 
20 different first-stage estimates, but it doesn't bother to combine 
them into a single set of first-stage estimates.
If you wanted, you could add the -noisily- option to -mim-. But my 
guess is that it would just deluge you with output.

-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
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EMAIL:  Richard.A.Williams.5@ND.Edu
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