Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, is already up and running.

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

re:RE: Correction: re: Re: st: Interaction terms

From   Christopher Baum <>
To   "" <>
Subject   re:RE: Correction: re: Re: st: Interaction terms
Date   Tue, 3 May 2011 14:35:30 -0400

I hadn't seen the combination of the ## notation with the parenthesis like Kit used here.

Safe to assume that creates all possible 2-way interactions of G2 with each var inside the parentheses... but not the fully factorialized model?  

No, not safe... The ## implies full factorial between what is on the left and what is on the right (but not, as you may mean, interactions of stuff inside the parens). Using auto.dta, try

reg price i.foreign##c.(mpg headroom trunk)

Kit Baum   |   Boston College Economics & DIW Berlin   |
                              An Introduction to Stata Programming  |
   An Introduction to Modern Econometrics Using Stata  |

*   For searches and help try:

© Copyright 1996–2016 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index