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From |
yumin sheng <shengyumin@yahoo.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: plot predicted effects after regression |

Date |
Sat, 8 May 2004 07:01:52 -0700 (PDT) |

Dear Tom, Thanks so much. Your solution is great, but if I remember correctly, I think Stata has a ready and very simple command for post-estimation graphing of the predicted effects. I will try to look further myself. Thanks so much again. Best wishes, yumin --- Thomas Trikalinos <ttrikalin@mac.com> wrote: > So you need predicted values on the > VariableOfInterest adjusting at the > mean level of continuous covariates, and the > reference category of > categoric covariates. > > A simple but not so elegant solution is > > . gen PredY = Constant + beta1* VariableOfInterest1 > + > beta2*MeanContinuousCovariate2 (or the > corresponding analogue for a > logit/probit/poisson etc regression) > > [first run . egen MeanContinuousCovariate2 = > mean(ContinuousCovariate2)] > > > > Constant and beta1, beta2 are from the regression > output. All > Categorical covariate terms are zero (this would be > your reference > category, right?) and all the continuous covariate > terms are > incorporated using their mean level. This way you > adjust for the > reference category for categoric covariates and for > the mean value of > continuous covariates. > > You most probably have more than one continuous > covariates; just put in > as many terms as you need. If you have different > functions of the > VariableOfInterest (eg quadratic or cubic terms) put > them in as more > VariablesOfInterest. > > This is a crude workaround I use. I'm confident that > people know > something better and more elegant, though... > > Cheers > Tom > > > On May 8, 2004, at 1:37, yumin sheng wrote: > > > Dear all, > > > > This is a real simple question, but I just > couldn't > > remember the command off the top of my head. Can > > anyone tell me how to plot the predicted effects > of a > > variable after running the regressions, while > holding > > all the other independent variables constant. > Thanks a > > bundle! > > > > Best, > > yumin > > > > > > > > > > __________________________________ > > Do you Yahoo!? > > Win a $20,000 Career Makeover at Yahoo! HotJobs > > > http://hotjobs.sweepstakes.yahoo.com/careermakeover > > * > > * For searches and help try: > > * > http://www.stata.com/support/faqs/res/findit.html > > * http://www.stata.com/support/statalist/faq > > * http://www.ats.ucla.edu/stat/stata/ > > > > * > * For searches and help try: > * > http://www.stata.com/support/faqs/res/findit.html > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**Re: st: plot predicted effects after regression***From:*Thomas Trikalinos (.Mac) <ttrikalin@mac.com>

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