Re: st: mfx after svy: probit - "invalid e(rules) matrix" error

[Richard Williams <Richard.A.Williams.5@ND.edu>]

At 03:48 PM 2/4/2006, Erin Strumpf wrote:

> That may have to suffice for now, until I can figure out what an 
> e(rules) matrix is....
Good question.  I can't find it in either the manuals or the online help.

Do make sure that you not only have Stata 9.1, but the latest and 
greatest version of 9.1, i.e. type

-update all-

You might also try it without the -subpop- option.  The similar 
examples I have tried all work fine, which makes me suspect that 
either (a) you aren't 100% up to date or (b) maybe there is something 
odd about your variables or your subpop variable.

One other thing you might try: If your data were svyset in Stata 8, 
then the svyprobit command should work with them.  It would be something like

xi: svyprobit rfullret tx2 i.ragey_e rfemale i.rraceeth i.raedcat, subpop(temp)
mfx

If it was svyset in Stata 9, you may be able to first do something like

version 8.2: svyset...



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