IGB

Connexion

(Article of periodic en Anglais - 2001)

Document title

An approximation for the rank adjacency statistic for spatial clustering with sparse data

Authors(s) and Affiliation(s)

EKWARU J.P. ; WALTER S.D. ;

Abstract

The rank adjacency statistic D provides a simple method to assess regional clustering. The usual normal approximation is found to give inaccurate results if the data are sparse and some regions have tied ranks. Ajusted formulae for the moments of D that allow for the existence of ties are derived. It is a valid approximate method to evaluate spatial clustering, even in sparse data situations (for mortality).

Source

Article of periodic

published at : Geographical analysis / ISSN 0016-7363

Editor : Ohio State University Press, Columbus, OH - ETATS-UNIS (1969)

Millesime : 2001, vol. 33, no1 [pp. 29-39]

Bibliographic references : 15 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 17078

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2001.
Refdoc record number (ud4) : 6181780 : Permanent link - XML version
Powered by Pxxo