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st: Omitted category interaction variables


From   Estrella Gomez <[email protected]>
To   [email protected]
Subject   st: Omitted category interaction variables
Date   Mon, 4 Nov 2013 11:36:37 +0100

Hi all,

I'm regressing an equation where three variables are interacted with
years. I would like to have 2006 as base year; that's it, I want Stata
to omit this year in all cases. I use the command:

xtreg lpq b2006i.year#c.ldist b2006i.year#i.dhome b2006i.year#i.dlang i.year, fe

but it does not work; Stata omit a different year in each case. I have
also tried with:

xtreg lpq b(first).year#c.ldist b(first).year#i.dhome
b(first).year#i.dlang i.year, fe

and to use fvset base 2006 year, but I obtained the same results

Any idea on this?

Thanks,
Estrella
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