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From |
Maarten Buis <maartenlbuis@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Posting Std. Error using postfile after -xtmepoisson- |

Date |
Mon, 25 Feb 2013 09:17:00 +0100 |

On Sun, Feb 24, 2013 at 7:18 PM, Cam Gillies wrote: > I am using a -post- command to save estimates from a loop of analyses, but > cannot figure out how to post the standard error of the random effect after > –xtmepoisson-. I am able to post the estimate of the random effect using > exp([lns1_1_1]_cons). Stata uses the delta method to compute that standard error. This method is explained in general terms here: <http://www.stata.com/support/faqs/statistics/delta-method/>. Below is an example that applies it to your problem: *----------------------- begin example ----------------------- webuse epilepsy xtmepoisson seizures treat lbas lbas_trt lage v4 || subject: // Using the delta method to compute the se: di sqrt([lns1_1_1]_se[_cons]^2*exp([lns1_1_1]_b[_cons])^2) *------------------------ end example ------------------------ (For more on examples I sent to the Statalist see: http://www.maartenbuis.nl/example_faq ) Hope this helps, Maarten --------------------------------- Maarten L. Buis WZB Reichpietschufer 50 10785 Berlin Germany http://www.maartenbuis.nl --------------------------------- * * 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/

**References**:**st: Posting Std. Error using postfile after -xtmepoisson-***From:*Cam Gillies <cam.gillies@telus.net>

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