Re: st: Twoway quadratic prediction plots with CIs in a multivariate regression setting

[Michael Ingenhaag <Michael.Ingenhaag@unil.ch>]

Thank you Scott.

I was using something similar, but instead of your proposition

The problem with the marginsplot command is, that I cannot combine other graphs as I would like to put graphs of two different models in one plot, i.e. for an unconditional and a conditional model. Hence, I was thinking about qfitci.

Any further suggestions?





On 25.07.2012 15:49, Scott Merryman wrote:
> Something like this:
>
> webuse nhanes2.dta
> reg iron c.age##c.age i.race zinc
> margins , at(age = (10(10)80) (base) race (zero) zinc) vsquish
> marginsplot
>
>
> Scott
>
> On Wed, Jul 25, 2012 at 8:30 AM, Michael Ingenhaag
> <Michael.Ingenhaag@unil.ch> wrote:
> > Hi,
> >
> > I'd like to construct quadratic prediction plots with Cis based on a
> > multivariate regression, i.e. include additional regressors to the one on
> > which the quadratic fit is based on.
> > Essentially, I want to run the following regression:
> >
> > /reg y c.age c.age#c.age i.male i.country_ind/ /num_hh_children income/
> >
> > I'd like to have the prediction of the age polynomial based on the above
> > regression setting all other variables, respectively, to their base level
> > (factor variables) or zero if continuous.
> > Based on this prediction I need a plot similar to the one produced by
> > /qfitci/.
> >
> > The Stata command /qfitci/ does only allow for one regressor that is used to
> > compute the quadratic prediction.
> >
> > Does anyone have any suggestions?
> >
> > --
> > Michael Ingenhaag
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--
Michael Ingenhaag
PhD Candidate and Assistant

Faculty of Business and Economics
Institute of Health Economics and Management (IEMS)
University of Lausanne
CH-1015 Lausanne

Phone:  (41) 021 692 3656
Fax:    (41) 021 692 3655

Email:  Michael.Ingenhaag@Unil.ch

*
*   For searches and help try:
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