Quadrat Analysis_RW_Thomas

Alternatively we can construct probability models

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Unformatted text preview: models which make assumptions about the location of a point being dependent on the location of the other points forming the pattern, and clearly the precise nature of these assumptions will depend on the particular phenomena we are studying. Any probability distribution designed to give a prediction for the observed frequency array must satisfy, or at least closely approximate, the following condition (8) and black-black. The tests are made between the observed distribution of contacts and the expected distribution in a random pattern. Contiguity tests have been developed for regular grids (Cliff, 1968) and irregular spatial units (Geary, 1954), and more recently many of the central assumptions of contiguity analysis have been incorporated in the general treatment of the problems of spatial autocorrelation (Cliff and Ord, 1973). Indeed, all the approaches to point patterns described here may be subsumed under the general heading of stochastic process theory in geography, and Hepple (1974) has provided a comprehensive survey of this field. In writing this monograph it has been assumed...
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