Hi all,
You guys are really genius!! Many thanks for your quick reply!!
Best,
Martin
======= 2008-05-13 21:41:32 Original Message��=======
>Or just:
>egen long i=group(d1,d2)
>areg y x, absorb(i)
>
>On Tue, May 13, 2008 at 9:10 AM, Rodrigo Alfaro A. <[email protected]> wrote:
>> Well, let's suppose that c1 and c2 are your categorical variables.
>> Moreover, c1={1,2,3} and c4={1,2,3,4}... then I will try something like:
>> gen double c3= c1*10 + c2, then areg whatever, a(c3).
>
>On Tue, May 13, 2008 at 9:07 AM, Joseph Coveney <[email protected]> wrote:
>> Ziyang Wang wrote:
>>
>> I'd like to ask a question about dummy variables, I have 11 dummy variables
>> which result from the interaction of two dummies, one with 3 categories and
>> the other with 4 categories. I like to know how to subdue those dummies in
>> the regression output? Something like absorb option in areg. Anyone knows?
>> Many thanks!
>>
>>
>> --------------------------------------------------------------------------------
>>
>> If it's a linear model, then you can use -anova-. Otherwise, you can't
>> suppress the reporting of individual levels of dummy variables as far as I
>> know, but you can use -test- afterwards to get a single test statistic.
>>
>> Joseph Coveney
>*
>* For searches and help try:
>* http://www.stata.com/support/faqs/res/findit.html
>* http://www.stata.com/support/statalist/faq
>* http://www.ats.ucla.edu/stat/stata/
>
= = = = = = = = = = = = = = = = = = = =
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
