<>
I used to think that the expansion of the -fvvarlist- happened
"independently" of the estimation command that requested it...
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Nick Winter
Gesendet: Dienstag, 13. Oktober 2009 17:29
An: [email protected]
Betreff: Re: st: AW: Interaction with squared variable
I can reproduce this with the auto dataset. Seems like something for
technical support...
. regress rep78 i.foreign c.weight c.weight#c.weight
i.foreign#(c.weight#c.weight)
<<model estimation output omitted>>
. oprobit rep78 i.foreign c.weight c.weight#c.weight
i.foreign#(c.weight#c.weight)
invalid interaction specification;
multiple 'o' operators attached to a single variable are not allowed
within an interaction specification{p_end}
r(198);
Nick Winter
Giuseppe Cappelletti wrote:
> This is the message I get when I use the command ( oprobit y
> i.gender c.x c.x#c.x i.gender#(c.x#c.x) )
> "invalid interaction specification;
> multiple 'o' operators attached to a single variable are not allowed
> within an interaction specification{p_end}"
>
> The same command works if I use a linear model that is regress y
> i.gender c.x c.x#c.x i.gender#(c.x#c.x).
>
> Thanks in advance
>
> Giuseppe
>
> <>
>
> " but it does not work".
>
>
> What exactly does not work? Note the FAQ onthis point...
>
>
>
> HTH
> Martin
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--
--------------------------------------------------------------
Nicholas Winter 434.924.6994 t
Assistant Professor 434.924.3359 f
Department of Politics [email protected] e
University of Virginia faculty.virginia.edu/nwinter w
PO Box 400787, 100 Cabell Hall
Charlottesville, VA 22904
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