Nearest Neighbour Index
The nearest neighbour index, introduced by Clark and Evans in 1954, is a simple summary statistic that quantifies whether a set of points is clustered, randomly scattered, or evenly dispersed across an area. It compares the average distance from each point to its closest neighbour with the average distance that would be expected if the same number of points were placed completely at random. The ratio of observed to expected distance, together with a significance test, gives a single interpretable number that has become a staple of point-pattern analysis in geography and ecology.
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Vyanzo
- Clark, P. J., & Evans, F. C. (1954). Distance to nearest neighbor as a measure of spatial relationships in populations. Ecology, 35(4), 445–453. DOI: 10.2307/1931034 ↗
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 22). Clark-Evans Nearest Neighbour Index. ScholarGate. https://scholargate.app/sw/human-geography/nearest-neighbour-index
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