UNEQWOR

Without replacement sampling with unequal probabilities of selection at the first stage.

You can specify the sample design on the PROC statement, using the DESIGN options.

The specification requirements for the NEST, TOTCNT, and (if included) SAMCNT statements are the same as for the UNEQWOR and the WOR designs.

In order to compute variances according to an UNEQWOR design, you must provide joint probabilities of selection for each pair of PSUs within each first-stage stratum. Variables containing these probabilities are identified on the JOINTPROB statement.