
126
Chapter 13
Figure
Sampling Wizard, Sampling Method step (stage 1)
ESelect PPS as the sampling method.
ESelect Count data records as the measure of size.
EClick Next.
Within each county, townships are drawn without replacement with probability proportional to the number of records for each township. Using a PPS method generates joint sampling probabilities for the townships; you will specify where to save these values in the Output Files step.