Search: Software for Exploring Data Structure

Survey Research Center, Institute for Social Research
University of Michigan

James N. Morgan
Peter W. Solenberger
Neal A. Van Eck
Pauline R. Nagara

Search is a binary segmentation procedure used to develop a predictive model for a dependent variable. It searches among a set of predictor variables for the predictors that most increase the researcher's ability to account for the variance or distribution of a dependent variable. The question "What dichotomous split on which single predictor variable will give us a maximum improvement in our ability to predict values of the dependent variable?" asked iteratively, is the basis for the Search algorithm.

Search can perform the following functions:

The University of Michigan version of Search is a set of C and FORTRAN routines that can be launched fromrom R, SAS, SPSS or Stata or run independently using data from many sources. It is currently available for personal computers using the Linux, Mac OS X and Microsoft Windows operating systems. For the indepeSearchndent implementation see the Srcware references below.

Search is also available as part of MicrOsiris, a full-featured data management and analysis software package for Microsoft Windows from Van Eck Computer Consulting at URL:

Search is freeware. The University of Michigan retains the copyright for Search and authorizes its use free of charge. See the Search License Agreement for details. Please report bugs or send comments to Peter Solenberger.


Search Discussion Paper Search with R
Searching for Structure Search with SAS
Search User Guide Search with SPSS
Search Installation Guide Search with Srcware
Stata User Supplement Search with Stata
Srcware User Supplement


  MS Windows PC Linux Mac OS X
Software srclib_windows.exe srclib_pclinux64.tgz srcware_macosx64.tgz
Examples search_example_pclinux.tgz search_example_macosx.tgz

Last updated 2 July 2016