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SPWMATFILL: Stata module to assign first nearest neighbors to observations with no contiguous neighbors

Author

Listed:
  • P. Wilner Jeanty

    (The Kinder Institute for Urban Research/Hobby Center for the Study of Texas, Rice University)

Programming Language

Stata

Abstract

spwmatfill takes a contiguity-based spatial weights matrix -created in GeoDa- whose some rows consisting of only zero elements represent observations with no contiguous neighbors, assigns to those observations their nearest neighbors as their sole neighbors, and replaces the zero elements corresponding to the nearest neighbors with ones. In order to calculate the first nearest neighbors spwmatfill relies on nearstat (q.v.) which must be installed.

Suggested Citation

  • P. Wilner Jeanty, 2010. "SPWMATFILL: Stata module to assign first nearest neighbors to observations with no contiguous neighbors," Statistical Software Components S457134, Boston College Department of Economics.
  • Handle: RePEc:boc:bocode:s457134
    Note: This module should be installed from within Stata by typing "ssc install spwmatfill". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
    as

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    File URL: http://fmwww.bc.edu/repec/bocode/s/spwmatfill.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/s/spwmatfill.hlp
    File Function: help file
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