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From |
"Arantza Ugidos" <arantza.ugidos@ehu.es> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
st: RE:RE: AW: marginal effects after ssm command |

Date |
Mon, 15 Feb 2010 13:26:48 +0100 |

Thanks Martin for your answer and the link to a previous question about ssm. We also have that problem with the likelihood ratio test. But coming but to the marginal effects, what we typed is: The specific options we use are the following: ssm y1 x1-x10, s(y2=z1-z8) q(15) adapt trace noconst robust f(binom) link(oprobit) sel; mfx; We do not know where the error may be. With other commands mfx works fine. But after ssm it does not return marginal effects but the estimated coefficients again. Thank you again. Arantza -----Mensaje original----- De: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] En nombre de Martin Weiss Enviado el: miércoles, 10 de febrero de 2010 14:24 Para: statalist@hsphsun2.harvard.edu Asunto: st: AW: marginal effects after ssm command <> So -ssm- is a user-written command, obtained via - ssc d ssm-. It is difficult to comment since the simulated example in the help file ends in a "r(2000)" error, which others have observed before: http://www.stata.com/statalist/archive/2006-12/msg00049.html You should provide _exactly_ what you typed and where you suspect an error... HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Arantza Ugidos Gesendet: Mittwoch, 10. Februar 2010 11:58 An: statalist@hsphsun2.harvard.edu Cc: 'Clara Velasquez Garzon' Betreff: st:marginal effects after ssm command Hi statalist, We are using ssm command to estimate an ordered model with sample selection. We want to estimate the marginal effects of our explanatory variables. We use mfx command after the ssm command but this gives us the same values as the estimated coefficients. It seems that mfx is not given us the marginal effect. Does anybody know which is the appropriate command to get the marginal effects when using ssm? Thank you very much, Arantza * * 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/ * * 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/ * * 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:RE: AW: marginal effects after ssm command***From:*Maarten buis <maartenbuis@yahoo.co.uk>

**References**:**st:marginal effects after ssm command***From:*"Arantza Ugidos" <arantza.ugidos@ehu.es>

**st: AW: marginal effects after ssm command***From:*"Martin Weiss" <martin.weiss1@gmx.de>

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