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From |
"Michael I. Lichter" <mlichter@buffalo.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: prediction of model using svy-commands |

Date |
Thu, 08 Oct 2009 13:31:30 -0400 |

Rune,

Michael Rune Nielsen wrote:

Hi,I'm using stata 11.0 on a Mac with os 10.6. I'm using spost 9. Aftersetting the survey parameters I try running this regression:/svyset [pweight=vekt_alle], strata(kilde)//svy: regress log_kost i.GOLDogrestr i.kjonn_omv i.smoke_bin alder2006i.utdannelse_omv if har364dg==1 & n474==100/when I try using prvalue:/prvalue, x(_IGOLDogres_2=0 _IGOLDogres_3=0 _IGOLDogres_4=0_Ikjonn_omv_1=0.415 _Ismoke_bin_1=0.559 _Iutdannels_1=0.479_Iutdannels_2=0.3047 alder2006=61.868) /I get this error: /factor variables and time-series operators not allowed/However, if I try doing this without the svy-prefix, spost manages topredict nicely. I'm not that skilled, so perhaps there is some kind ofobvious error in my commands?Best wishes,RuneDen 8. okt. 2009 kl. 09.42 skrev Michael I. Lichter:What version of Stata are you using, what version of spost, whatcommand line are you using, and what do you mean by "not possible"?In Stata 10.1, using spost9, I just ran -svy: reg depvar age gender-followed by -prvalue, x(age=50)- and got a sensible answer from-prvalue- (I did not, however, verify that the answer was correct).Michael Rune Nielsen wrote:Dear statalist-members,I'm running a model (multiple linear regression) using the/svy/-prefix to adjust for a stratified sample. The outcome islog-transformed due to large left-skewing.I would like to do some predictions using prvalue from thespost-package. However, this is not possible when I've used thesurvey-version of/ regress/. Does anybody know a simple solution tothis? I've already tried running the model without svy, butspecifying pweight and vce(cluster clustervar), but then I don't getreliable confidence intervals.Grateful for any answers (in simple language for a non-statician) Best wishes, Rune Nielsen --- Rune Nielsen, MD, research fellow Institute of Medicine, Bergen, Norway--Michael I. Lichter, Ph.D. <mlichter@buffalo.edu<mailto:mlichter@buffalo.edu>>Research Assistant Professor & NRSA Fellow UB Department of Family Medicine / Primary Care Research Institute UB Clinical Center, 462 Grider Street, Buffalo, NY 14215 Office: CC 126 / Phone: 716-898-4751 / FAX: 716-898-3536 * * 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/

-- Michael I. Lichter, Ph.D. <mlichter@buffalo.edu> Research Assistant Professor & NRSA Fellow UB Department of Family Medicine / Primary Care Research Institute UB Clinical Center, 462 Grider Street, Buffalo, NY 14215 Office: CC 126 / Phone: 716-898-4751 / FAX: 716-898-3536 * * 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: prediction of model using svy-commands***From:*Rune Nielsen <nielsenrune@me.com>

**References**:**st: prediction of model using svy-commands***From:*Rune Nielsen <nielsenrune@me.com>

**Re: st: prediction of model using svy-commands***From:*"Michael I. Lichter" <MLichter@Buffalo.EDU>

**Re: st: prediction of model using svy-commands***From:*Rune Nielsen <nielsenrune@me.com>

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