You must include the [pweight] option. The example is the Stata
Survey Data Manual (p. 50 Version 10) is misleading. Because the
example used SRS, probability weights were equal.
-Steve
On Jan 19, 2009, at 10:42 AM, Tomas Lind wrote:
I have a survey that is stratified on geographical areas. Now I
want to
poststratify on a combination of age and income. Should I specify both
strata and option poststrata or shall I specify only option
poststrata? The
result is slightly different.
// svyset with strata
svyset [pweight=v] , strata(str) poststrata(ai) postweight(n_ai)
// svyset without strata
svyset , poststrata(ai) postweight(n_ai)
/Tomas
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