Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: specify base year for interacted factor variable.


From   Phil Clayton <philclayton@internode.on.net>
To   statalist@hsphsun2.harvard.edu
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
> Tel: w +353-61-213147  f +353-61-202569  h +353-61-338562;  Room F1-009 x 3147
> mailto:brendan.halpin@ul.ie    ULSociology on Facebook: http://on.fb.me/fjIK9t
> http://teaching.sociology.ul.ie/bhalpin/wordpress         twitter:@ULSociology
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/


*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index