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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
172 Spatial Point Patterns: Methodology and Applications with R
> D <- density(swp, sigma=bw.diggle, adjust=2)
This is equivalent to selecting the bandwidth by b <- bw.diggle(swp) then computing D <-
density(swp, sigma=2*b).
6.5.1.3 Estimation of intensity at the da ta points
It is sometimes requ ired to estimate the intensity values
λ
(x
i
) at the data points x
i
themselves. For
example, the estimated in tensity values at the data poin ts can be used as weights in some analysis
proced ures. However, the estimates
e
λ
(U)
(x
i
) and
e
λ
(D)
(x
i
) have a large positive bias, because of the
term
κ
(u x
i
) =
κ
(x
i
x
i
) =
κ
(0) appearing in the sum in (6.8)–(6.9). To deal with ...
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Publisher Resources

ISBN: 9781482210217