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Spatial Point Patterns
book

Spatial Point Patterns

by Adrian Baddeley, Ege Rubak, Rolf Turner
November 2015
Intermediate to advanced content levelIntermediate to advanced
828 pages
33h 11m
English
Chapman and Hall/CRC
Content preview from Spatial Point Patterns
Spacing 275
8.6 J-function
8.6.1 C omparing nearest-neighbour and empty-space distanc es
Nearest-neighbour distances and empty-space distances have the same probability distribution if
the pattern is completely random. Under various departures from complete spatial randomness,
the nearest-neighbour and empty-sp ace distances te nd to respond in opposite directions one
becoming larger while the other becomes smaller. This suggests that a comparison of these two
types of distance could be useful in assessing departure from CSR.
The Hopkins-Skellam test (Section 8. 2.2) is an example of such a techn ique. The test statistic
(8.2) is the ratio of the
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Publisher Resources

ISBN: 9781482210217