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Re: st: Clarification requested about the at() option of -margins-


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 . . .
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