[EpiData-list] Epidata Analysis and cluster sampling

epidata-list at lists.umanitoba.ca epidata-list at lists.umanitoba.ca
Tue Feb 8 12:17:41 CST 2011

We have until now decided NOT to include cluster options for the 
analysis part.

The problem was the overall size of the development work. But also the 
large development in statistics theory/practice in this respect over the 
last decades. The difference is in the estimation of variance (basicly).

 From the beginning of the EpiData project the intention was ONLY to 
focus on datadocumentation (and entry) - but later the development of an 
Analysis module became desired.

I would suggest that users in need of cluster sampling based analysis 
either go to "comercial software" such as Stata (stata.com) or look into 
the methods available in the R-project. If you search in the R-project 
(http://www.r-project.org/) on cluster analysis more than 100 hits will 
guide you further.

My intention in the further developments could be to write an engine 
such that the user can call R-modules from within EpiData Analysis.

Jens Lauritsen
EpiData Association

On 2011-02-08 09:46, epidata-list at lists.umanitoba.ca wrote:
> Hello,
> I would like to know if there is a way to analyze our  data from a
> vaccination coverage study, in which we used *cluster sampling*, using
> Epidata Analysis. As far as I know, Epidata Analysis by default gives
> proportions and confidence intervals assuming for simple random sampling.
> Thank you in advance,
> Dimitris Papamichail
> National School of Public Health, Greece

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