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Finding Leverage Groups

Author: David E Coleman; National Bureau of Economic Research.
Publisher: Cambridge, Mass. : National Bureau of Economic Research, 1977.
Series: Working paper series (National Bureau of Economic Research), no. w0195.
Edition/Format:   eBook : Document : EnglishView all editions and formats
Summary:
A brief discussion of recent methods using the Hat Matrix for identifying leverage points, and clustering techniques for finding groups of data points is presented. The problem of identifying leverage groups is addressed, and a heuristic algorithm for identifying both leverage points and leverage groups is proposed. Semi-portable FORTRAN code implementing the algorithm, a sample terminal session, and a discussion of  Read more...
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Genre/Form: Electronic book
Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: David E Coleman; National Bureau of Economic Research.
OCLC Number: 756574322
Description: 1 online resource.
Series Title: Working paper series (National Bureau of Economic Research), no. w0195.
Responsibility: David E. Coleman.

Abstract:

A brief discussion of recent methods using the Hat Matrix for identifying leverage points, and clustering techniques for finding groups of data points is presented. The problem of identifying leverage groups is addressed, and a heuristic algorithm for identifying both leverage points and leverage groups is proposed. Semi-portable FORTRAN code implementing the algorithm, a sample terminal session, and a discussion of the terminal session are included.

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