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Re: st: specify base year for interacted factor variable.
From
Phil Clayton <[email protected]>
To
[email protected]
Subject
Re: st: specify base year for interacted factor variable.
Date
Fri, 18 May 2012 07:41:07 +1000
Another option is to use -fvset- to set the base level; then you don't need to type the "b1999" for any subsequent models including year:
fvset base 1999 year
xtreg i.year##c.x, i(id) fe
Phil
On 18/05/2012, at 6:30 AM, Brendan Halpin wrote:
> On Thu, May 17 2012, Daifeng He wrote:
>
>> . xtreg y ib1999.year#c.x i.year, i(id) fe
>
> Does the problem also arise with
>
> . xtreg y ib1999.year#c.x ib1999.year, i(id) fe
>
> or (perhaps you have a reason for not including the first order effect
> of x)
>
> . xtreg y ib1999.year##c.x, i(id) fe
>
>
> Brendan
> --
> Brendan Halpin, Department of Sociology, University of Limerick, Ireland
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