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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
642 Spatial Point Patterns: Methodology and Applications with R
example the nbfires pattern consists of locations of forest fires, marked by 9 different variables.
To classify the fire locations into four groups on the basis of their final fire size:
> NB <- cut(nbfires, "fnl.size", breaks=4)
Note th at setting breaks=4 tells cut to divide (a slight extension of) th e range of the fire sizes into
four roughly equal intervals.
More complex sub divisions can be accomplished using subset.ppp or arithmetic with the
marks:
> big.old <- subset(nbfires, fnl.size > 10 & dis.date < "2001-01-01")
15.2.3 Intensity for point patterns w ith real-valued marks
Suppose
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Publisher Resources

ISBN: 9781482210217