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Local Indicators of Spatial Association—LISA

Open access
Anselin, Luc·1995·Geographical Analysis

Abstract

The capabilities for visualization, rapid data retrieval, and manipulation in geographic information systems (GIS) have created the need for new techniques of exploratory data analysis that focus on the “spatial” aspects of the data. The identification of local patterns of spatial association is an important concern in this respect. In this paper, I outline a new general class of local indicators of spatial association (LISA) and show how they allow for the decomposition of global indicators, such as Moran's I, into the contribution of each observation. The LISA statistics serve two purposes. On one hand, they may be interpreted as indicators of local pockets of nonstationarity, or hot spots, similar to the G i and G*i statistics of Getis and Ord (1992). On the other hand, they may be used to assess the influence of individual locations on the magnitude of the global statistic and to identify “outliers,” as in Anselin's Moran scatterplot (1993a). An initial evaluation of the properties of a LISA statistic is carried out for the local Moran, which is applied in a study of the spatial pattern of conflict for African countries and in a number of Monte Carlo simulations.

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Metadata

Authors
Anselin, L.
Venue
Geographical Analysis
Publisher
Wiley
Published
1995-04
Volume
27
Issue
2
Pages
93-115
ISSN
  • 0016-7363 (ISSN-L)
  • 1538-4632
OpenAlex
W2118898434
Cited by
12,919
References
1
FWCI
59.56
Type
journal article
Language
en
Open access
bronze

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