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Re: Tanzania 2010 [message #3125 is a reply to message #3101]

Sat, 18 October 2014 14:39

Trevor-DHS
Messages: 805
Registered: January 2013

Senior Member

The problem is that in certain strata there is only one cluster, and for the calculation of sampling errors and confidence intervals at least two clusters are required in each cluster. In this case the best thing is to regroup the strata to permit the calculation of the sampling errors. In the case of this Tanzania dataset, the following have only one cluster:
18: Kagera, urban
22: Kusini Pemba, urban
23: Kaskazini Pemba, urban
I suggest grouping these with the rural strata for the same regions, e.g. with
44: Kagera, rural
48: Kusini Pemba, rural
49: Kaskazini Pemba, rural

Thus I suggest using the following:
recode hv022 (18=44) (22=48) (23=49), gen(strata_new)
svyset hv021 [pw=hv005], strata(strata_new)

As you are using a subpop with your tabulation, you may hit this issue with other strata, in which case you will need to make a decision to regroup further strata together.

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[Message index]

		Tanzania 2010 By: azucena2014 on Wed, 15 October 2014 13:56
		Re: Tanzania 2010 By: Bridgette-DHS on Thu, 16 October 2014 09:06
		Re: Tanzania 2010 By: azucena2014 on Thu, 16 October 2014 10:56
		Re: Tanzania 2010 By: Reduced-For(u)m on Thu, 16 October 2014 22:24
		Re: Tanzania 2010 By: azucena2014 on Thu, 16 October 2014 22:47
		Re: Tanzania 2010 By: Trevor-DHS on Sat, 18 October 2014 14:39
		Re: Tanzania 2010 By: azucena2014 on Sun, 19 October 2014 09:26

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