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From |
"Lina Jonsson" <[email protected]> |

To |
<[email protected]> |

Subject |
SV: st: Problems with calculating marginal effects for categorical variables in ologit models |

Date |
Wed, 23 Apr 2008 11:13:21 +0200 |

```
Hello.
I recieve the same error message when I'm using margeff after ologit.
When entering:
xi: ologit F24 i.SDO i.F17_A [pweight=VIKT] if F24!=6
margeff, dummies(_I*)
I recieve:
[_cut1] not found
r(111);
But I don't think the problem lies within the dummies option because I recieve the same error message when I'm using the margeff command without specifying , dummies(_I*)
Any ideas what could be the problem?
Best regards
/Lina Jonsson
> -----Ursprungligt meddelande-----
> Fr�n: [email protected]
> [mailto:[email protected]] F�r Joao Ricardo F. Lima
> Skickat: den 22 april 2008 13:31
> Till: [email protected]
> �mne: Re: st: Problems with calculating marginal effects for
> categorical variables in ologit models
>
> Eva,
>
> or then
>
> margeff, dummies(d*)
>
> because he said "D are all dummies for which you want to
> calculate the marginal
> > effects" not B.
>
> Best,
>
> Joao Lima
>
>
> 2008/4/22, Eva Poen <[email protected]>:
> > I cannot reproduce your problem using the auto data (see example
> > below). Btw, it's unlikely that you have literally typed -Margeff,
> > dummies (B *)-. Instead, you probably wrote -margeff, dummies(B*)-.
> >
> > Also, you said "D are all dummies for which you want to
> calculate the
> > marginal effects". The option -dummies- does not mean that marginal
> > effects will be calculated only for these variables. The option
> > ensures that, for the process of calculating marginal effects, only
> > one of the dummies will be set equal to 1, while all others
> are set to 0.
> >
> > If you send the exact code of your ologit model and the margeff
> > command to the list, people will be more likely to help.
> >
> > Eva
> >
> > ** example
> > sysuse auto, clear
> > tab headroom, gen(hr) /* create dummies */ ologit rep78
> foreign hr1
> > hr2 hr3 hr4 hr5 hr6 hr7 margeff, dummies(hr*)
> > ** end of example
> >
> >
> >
> >
> > 2008/4/22, [email protected]
> <[email protected]>:
> > > Dear users,
> > >
> > > My question is following one: I do not know how to calculate
> > > average marginal effects (AME) for categorical variables
> with more
> > > than two categories?
> > > In my ordered logit model, I have a dependent variable with 4
> > > categories and 5 categorical explanatory variables, 3 of
> them with
> > > more than two categories. I tried to implement the method
> of Tam�s
> > > Bartus which is decribed in his article "Estimation of
> marginal effects using margeff"
> > > (2005). His suggestion is to use the following command:
> > > Margeff, dummies (B *)
> > > where D are all dummies for which you want to calculate the
> > > marginal effects.
> > > The problem is that by trying to do this I got the
> following error:
> > > "[_cut1] not found" r(111)
> > >
> > > I would appreciate very much any suggestions.
> > >
> > > *
> > > * For searches and help try:
> > > * http://www.stata.com/support/faqs/res/findit.html
> > > * http://www.stata.com/support/statalist/faq
> > > * http://www.ats.ucla.edu/stat/stata/
> > >
> >
> > *
> > * For searches and help try:
> > * http://www.stata.com/support/faqs/res/findit.html
> > * http://www.stata.com/support/statalist/faq
> > * http://www.ats.ucla.edu/stat/stata/
> >
>
>
> --
> -------------------------------
> Joao Ricardo Lima
> Professor
> UFPB-CCA-DCFS
> +553138923914
> -------------------------------
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
```

**Follow-Ups**:

**References**:**st: Problems with calculating marginal effects for categoricalvariables in ologit models***From:*[email protected]

**Re: st: Problems with calculating marginal effects for categorical variables in ologit models***From:*"Eva Poen" <[email protected]>

**Re: st: Problems with calculating marginal effects for categorical variables in ologit models***From:*"Joao Ricardo F. Lima" <[email protected]>

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