st: Does STATA 12.1 run "mfx" for marginal effects?

[Neeraj Iyer <iyeranna@gmail.com>]

Hello STATA-listers,

I want to run marginal effects for a zero-inflated negative binomial
regression analysis.  I remember using the command "mfx" in STATA 10.
I was informed that "mfx" does not run in STATA 12.1.  I don't have
access to the software yet, but I can have access to STATA 12.1 soon.
Does anyone have experience using any other commands for marginal
effects in STATA 12.1?

Thank you.

Regards,
Neeraj
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