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From |
James Shaw <shawjw@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: re: problem with margeff |

Date |
Thu, 9 Jul 2009 15:05:39 -0500 |

I think I have identified the problem. Unlike the older version of -margeff- (4/22/2005), -margeff8- (2/10/2006), and -mfx-, the newer version of -margeff- (4/20/2008, v. 2.1.8) appears to require that brackets be placed inside the parentheses when using the "at()" option. The following two lines of code appear to work and yield identical results: . margeff compute, at([], x3=20 ) . margeff compute, at([mean], x3=20 ) The inclusion of the comma after the brackets has no bearing on the command's functioning. -- Jim On Thu, Jul 9, 2009 at 11:32 AM, Kit Baum<baum@bc.edu> wrote: > <> > > logit foreign price trunk mpg weight > margeff compute, at(mean mpg=20 trunk=10) > works fine. Admittedly the help file suggests you can omit the word > 'mean', but as that is the stated default, it doesn't hurt to use it. > > which margeff > > *! Obtain partial effects after estimation > *! Version 2.1.8 (20 April 2008) (Revision of Stata Journal > submission) > *! Author: Tamas Bartus (Corvinus University, Budapest) > > > Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html > An Introduction to Stata Programming > | http://www.stata-press.com/books/isp.html > An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html > > > > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > -- James W. Shaw, Ph.D., Pharm.D., M.P.H. Assistant Professor Department of Pharmacy Administration College of Pharmacy University of Illinois at Chicago 833 South Wood Street, M/C 871, Room 252 Chicago, IL 60612 Tel.: 312-355-5666 Fax: 312-996-0868 Mobile Tel.: 215-852-3045 * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**RE: st: re: problem with margeff***From:*Roy Wada <roywada@hotmail.com>

**References**:**st: re: problem with margeff***From:*Kit Baum <baum@bc.edu>

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