Thank you.
--- maartenbuis <[email protected]> wrote:
> --- Ricardo Ovaldia <ovaldia@y...> wrote:
> > I remember seen something on statalist or SJ about
> > getting a single test statistic or p-value for the
> > interaction term when the variables involved have
> many
> > levels (for example: continuous*categorical). I
> have
> > looked for it but can not findit. Does anyone
> recall
> > this?
>
> I don't recall that discussion but try:
>
> sysuse auto
> xi: reg price i.rep78*mpg
> test _IrepXmpg_2 _IrepXmpg_3 _IrepXmpg_4
> _IrepXmpg_5
>
> which test the hypothesis that all interaction terms
> are simultaniously
> equal to zero
>
> Hope this helps,
> Maarten
>
>
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> *
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>
Ricardo Ovaldia, MS
Statistician
Oklahoma City, OK
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