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st: New package -ipfweight- on SSC

From   Michael Bergmann <>
Subject   st: New package -ipfweight- on SSC
Date   Wed, 02 Nov 2011 11:45:46 +0100

Thanks to Kit Baum, a new package -ipfweight- is now available for download from SSC. In Stata, use the -ssc- command to do this.

The -ipfweight- command performs an iterative proportional fitting algorithm to create survey sampling weights and contains some additional features not available in Nick Winter's -survwgt- command. See the description below.

Best wishes

package ipfweight from

TITLE 'IPFWEIGHT': module to create adjustment weights for surveys

        ipfweight performs a stepwise adjustment (known as iterative
      proportional fitting or raking) of survey sampling weights to
      achieve known population margins. The iterative process is
      repeated until the difference between the sample margins and the
      known population margins is smaller than a specified tolerance
      value or the specified maximum number of iterations is obtained.
      Additionally, thresholds for maximum and minimum weighting
      factors can be specified as well as a simple replacement of
      missing values.

      Requires: Stata version 10
      Distribution-Date: 20111029
      Author: Michael Bergmann, Universitat Mannheim

Dipl.-Pol. Michael Bergmann
Universität Mannheim,
Lehrstuhl für Vergleichende Politische Verhaltensforschung
A5,6 (Zimmer 514)
D-68131 Mannheim

Phone: 0621/181-3547

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