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| From | "JVerkuilen (Gmail)" <jvverkuilen@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: Prediction at the 'mean' of a categorical- xi3? |
| Date | Thu, 14 Mar 2013 09:13:43 -0400 |
On Thu, Mar 14, 2013 at 8:07 AM, David Hoaglin <dchoaglin@gmail.com> wrote: > Andrew, > > I think of Jay's suggestion as equivalent to taking a mixture of the 6 > categories as the basis for the centering. In that mixture, the weight > for each category would be its proportion in your data or in a > relevant population. Approached in that way, the contribution to the > constant term should not be too difficult to interpret. Yes, that's what I meant. Jay -- JVVerkuilen, PhD jvverkuilen@gmail.com "It is like a finger pointing away to the moon. Do not concentrate on the finger or you will miss all that heavenly glory." --Bruce Lee, Enter the Dragon (1973) * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/