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From |
Florian Wendelspiess Chávez Juárez <florian@chavezjuarez.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: test of coefficients of the same regression equation |

Date |
Fri, 15 Feb 2013 11:59:08 +0100 |

Dear Nahla

Best regards, Florian On 15-Feb-13 11:49, Nahla Betelmal wrote:

hi Florian, Thanks for the reply. Would not that test the difference of the mean between the two variables rather than testing the difference between coefficients themselves? Thanks again Nahla On 15 February 2013 10:42, Florian Wendelspiess Chávez Juárez <florian@chavezjuarez.com> wrote:Hi Nahla I think you can simply use: test [mean]NSP = [mean]Times_2 or even test NSP = Times_2 in this case, since there is only one equation as I see. I hope this help. Best regards, Florian On 15-Feb-13 11:29, Nahla Betelmal wrote:Dear Statalist, I am trying to test the equality of coefficients b1 and b3 of the same regression equation reg Y NSP Q Times_2 est store alltwo suest alltwo test [alltwo_mean]NSP = [alltwo_mean]times_2 I got the error message : equation [alltwo_mean] not found r(303); All goes well till the test part. However, I had no problem using the same steps when I wanted to test the coefficients equality between two different regression. equations. It would be great if you let me know what I am doing wrong and the right way to test the coefficents of the same regression equation. Many thanks Nahla * * 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/* * 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/* * 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/

* * 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/

**Follow-Ups**:**Re: st: test of coefficients of the same regression equation***From:*Nahla Betelmal <nahlaib@gmail.com>

**References**:**st: test of coefficients of the same regression equation***From:*Nahla Betelmal <nahlaib@gmail.com>

**Re: st: test of coefficients of the same regression equation***From:*Florian Wendelspiess Chávez Juárez <florian@chavezjuarez.com>

**Re: st: test of coefficients of the same regression equation***From:*Nahla Betelmal <nahlaib@gmail.com>

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