Quadrat Analysis_RW_Thomas

Quadrat Analysis_RW_Thomas

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Unformatted text preview: suggest that the location of one factory influences the location of other factories?' In-other words, 'are factory locations in some way dependent on one another?' Alternatively, he may ask the simpler, and even more fundamental, question, is there evidence in the pattern which indicates that the points are totally unrelated?' In other words, 'is the pattern just a random distribution of points?' Subsequently, we shall see that the idea of a random point pattern requires careful definition, but Fig.1(ii) gives a visual impression of a random pattern. Quadrat methods attempt to answer such questions by adapting some o 4 the basic mathematical ideas in probability theory to analyse the frequency distribution of a point pattern. By frequency we mean the manner in w density 6 1 points varies over the study area. fig.2(i) illustrates a hypothetical pattern of 21 points which we shall use as a simple numerical example. We can measure the frequency distribution of this pattern by laying a square grid over the pattern (Fig.2(ii)) and counting the numbe...
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This note was uploaded on 02/15/2012 for the course GEO 6938 taught by Professor Staff during the Summer '08 term at University of Florida.

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