Thanks to Kit Baum for making -samplepps- available on SSC (for Stata
version 8 +). -samplepps- selects cases using random sampling
proportional to size (`pps').  Comments and suggestions on the
algorithms used would be welcome.
TITLE
      'SAMPLEPPS': module to draw a random sample with probabilities
proportional to size
DESCRIPTION/AUTHOR(S)
      
      samplepps draws a random sample from the current data set, with
      probabilities proportional to size (`pps'). The default is to
      select cases without replacement; optionally cases may be
      selected with replacement.
      
      KW: sample selection
      KW: proportional to size
      KW: PPS
      
      Distribution-Date: 20050630
      
      Author: Stephen P. Jenkins, University of Essex
      Support: email [email protected]
      
INSTALLATION FILES                            (type net install
samplepps)
      samplepps.ado
      samplepps.hlp
------------------------------------------------------------------------
------------------------------------------
(type -ssc install samplepps- to install)
Stephen
-------------------------------------------------------------
Professor Stephen P. Jenkins <[email protected]>
Institute for Social and Economic Research
University of Essex, Colchester CO4 3SQ, U.K.
Tel: +44 1206 873374.  Fax: +44 1206 873151.
http://www.iser.essex.ac.uk   
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