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From | John Westbury <jrwestbury@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | st: pweight, aweight, and survey data |
Date | Thu, 8 Apr 2010 12:42:08 -0500 |
Howdy. I am using a data set generated from a complex sample design. Sampling weights are established to account for the probability of selection in the sampling design and when applied to records produce a nationally representative sample. Each record in the sample is for individuals. I have experimented obtaining summary statistics with stata weight designators of pweight and aweight. Both pweight and aweight designations for my weight variable yield exactly the same summary statistics for my data but the definition of pweight and aweight seem to differ greatly in stata documentation. Can someone clarify why pweight and aweight yield the same summary statistics? When would using pweight or aweight generate different results? thanks much John * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/