Re: st: Wish List for margins

[David Backer <dabacker@umich.edu>]

Following up on this in a related vein, is there a way to use margeff 
after -mim: logit- to calculate average marginal effects across multiply 
imputed datasets?  When I try to do so, it generates the following error:

==0 invalid name
r(198);

I tried the suggestion on the statalist of preceding the margeff command 
with -mim, storebv-, but this does not solve the problem.

If it matters any, I am using Stata 10.

On Tue, 31 Aug 2010, Richard Williams wrote:

> I'm forcing myself to use the -margins- command and I am starting to like and 
> understand it better. Some things I'd like to see (or else maybe somebody can 
> tell me how to do them already):
>
> * I'd like a -discrete- option that would tell margins to treat a 0/1 
> dichotomy as a dichotomy. This would make margins more useful with older 
> user-written commands (like mine) that do not currently support the use of 
> factor variables.
>
> * Perhaps the syntax would be tricky, but I am a little surprised there isn't 
> a generate option. The old adjust command has one. You might want to see, 
> say, what the predicted probability for a case is given the values you have 
> fixed using the -at- option.
>
> * As far as I can tell, marginal effects after multiple-outcome commands are 
> still clunky to generate. You have to give a separate margins command for 
> each outcome. I wish margins acted like the user-written mfx2 and margeff 
> commands, generating all the marginal effects for every outcome with a single 
> command.
>
> * Like I've said before, I wish the old adjust and mfx commands had been 
> updated for Stata 11. One thing they would need added is an -asobserved- 
> option, which is the default for margins. At 50 pages, the manual entry for 
> margins is a little daunting.  I think it would be easier to understand if 
> there were simpler commands that focused on specific tasks.
>
> -------------------------------------------
> Richard Williams, Notre Dame Dept of Sociology
> OFFICE: (574)631-6668, (574)631-6463
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> WWW:    http://www.nd.edu/~rwilliam
>
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