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schematic
2005 Oct 09
1
enter a survey design in survey2.9
...area type (urban/rural)
In rural area, subdivision are sample with probabilties proporionnal to size in population then enuration area are sample in selected division and finally households are selected in those EA.
In urban area, EA are directly selected and finally household are selected.
to schematise we have:
(12 regions)
each region is divised in two regions / Urbain and rural. this are strata
in Rural : PSU are subdivision , SSU are EA and TSU are households
in Urban : PSU are EA , SSU are households.
I use svydesign function as follow :
esi<-svydesign(id=~su...