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Re: st: AW: AW: confidence interval of a ratio of coefficients
From
Shehzad Ali <[email protected]>
To
[email protected]
Subject
Re: st: AW: AW: confidence interval of a ratio of coefficients
Date
Wed, 7 Apr 2010 16:25:48 +0000 (GMT)
Thanks, Martin. As always, spot on!
Shehzad
----- Original Message ----
> From: Martin Weiss <[email protected]>
> To: [email protected]
> Sent: Wed, 7 April, 2010 17:01:17
> Subject: st: AW: AW: confidence interval of a ratio of coefficients
>
>
<>
BTW, if the name of the coefficients should pose a problem
> for you, you should make frequent use of the -coeflegend- option, also available
> on -replay-:
*************
sysuse auto, clear
logit foreign
> rep78 price weight
logit, coefl
nlcom (ratio:
> _b[price]/_b[weight])
*************
HTH
Martin
-----Ursprüngliche
> Nachricht-----
Von: > href="mailto:[email protected]";>[email protected]
> [mailto:> href="mailto:[email protected]";>[email protected]]
> Im Auftrag von Martin Weiss
Gesendet: Mittwoch, 7. April 2010 17:53
An: > ymailto="mailto:[email protected]";
> href="mailto:[email protected]";>[email protected]
Betreff:
> st: AW: confidence interval of a ratio of coefficients
<>
>
*************
sysuse auto, clear
logit foreign rep78 price
> weight
nlcom (ratio:
> _b[price]/_b[weight])
*************
HTH
Martin
-----Ursprüngliche
> Nachricht-----
Von: > href="mailto:[email protected]";>[email protected]
> [mailto:> href="mailto:[email protected]";>[email protected]]
> Im Auftrag von Shehzad Ali
Gesendet: Mittwoch, 7. April 2010 17:50
An:
> Stata List
Betreff: st: confidence interval of a ratio of
> coefficients
Dear listers,
I am modelling choice behaviour using a
> logit model. I want to calculate the marginal rates of subsititution of the
> attributes of choice alternatives by taking the ratio of coefficients (similar
> to what people do when calculating willingness to pay estimates by taking
> attribute/cost coefficients). I need help with calculating the confidence
> interval around the ratio of two coefficients.
Any help would be
> appreciated.
Shehzad
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