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| From | Nick Winter <njgwinter@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: Clarification requested about the at() option of -margins- |
| Date | Thu, 24 Oct 2013 12:49:27 -0400 |
3) You used both -margins, at()- and -margins, dydx() at()-. My understanding of the difference after reading your answer is that -margins, at()- gives the /probability/ of Y==1 at the specified values of X. Whereas -margins, dydx() at()- gives the /change in the probability/ of Y==1 from an infintesimal change in X at the specified values of X. Correct?
Yes, that is right.
(as a side note, I wouldn't have expected weight to predict foreign vs domestic as well as it does)
Foreign cars were a lot lighter than domestic cars in the late 1970s . . . * * 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/