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From |
Nick Cox <njcoxstata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: weights in pooled repeated cross sections |

Date |
Tue, 27 Sep 2011 21:35:29 +0100 |

PSUs are primary survey units. Nick On Tue, Sep 27, 2011 at 9:32 PM, Steven Samuels <sjsamuels@gmail.com> wrote: > > 1. Pool > 2. Divide weights by four (would affect only totals, but still a good idea) > 3. -svyset- the whole thing. > > > Steve > > On Sep 27, 2011, at 10:40 AM, Ivica Rubil wrote: > > so, you're saying I just pool the 4 datasets, divide the weights by 4, > and apply -svyset- to the pooled dataset? Or should I rather use > -svyset- for each of the 4 datasets, pool them in one, and then divide > the weights by 4? > Further, sorry for bothering you: what are PSUs? How do I check if they > change form year to year? > > -- > Ivica Rubil > Ekonomski institut / The Institute of Economics, Zagreb > Trg J. F. Kennedyja 7, 10 000 Zagreb, Croatia > tel. +385-1-2362-269 > fax. +385-1-2335-165 > irubil@eizg.hr > www.eizg.hr > > > -----Original Message----- > From: owner-statalist@hsphsun2.harvard.edu > [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Steven > Samuels > Sent: 27. rujan 2011 15:51 > To: statalist@hsphsun2.harvard.edu > Subject: Re: st: weights in pooled repeated cross sections > > > Ivica- > You can use the individual weights, Ivica, but divide by 4 so that they > sum to the average population total over the four years > > You still have to write the rest of the -svyset- command. If the PSUs > did not change over the four years, then treat the pooled sample as one > large sample, and use the same -svyset- statement that you would use for > a single year. If some PSUs changed you will have to do some stratum > recoding. For an example see > http://www.cdc.gov/nchs/ppt/nchs2010/46_Moriarity.ppt > > Steve > > On Sep 26, 2011, at 12:03 PM, Ivica Rubil wrote: > > Dear all, > > I am trying to pool four repeated cross-sections of Croatian Hpusehold > Budget Survey. > For each year that I want to pool, I have sampling weights for each > observation (both household and person). > My questions are: What should I do with the weights once I pool the four > datasets? Is it wrong to use > dataset-specific weights in the pooled dataset and just run estimation > commands with the weight option, if > available? I am confused. Please, help. > * * 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: weights in pooled repeated cross sections***From:*Steven Samuels <sjsamuels@gmail.com>

**Re: st: weights in pooled repeated cross sections***From:*Fernando Rios Avila <f.rios.a@gmail.com>

**References**:**FW: st: weights in pooled repeated cross sections***From:*"Ivica Rubil" <irubil@eizg.hr>

**Re: st: weights in pooled repeated cross sections***From:*Steven Samuels <sjsamuels@gmail.com>

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