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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
Replicated Poin t Patterns and Designed Experiments 701
16.10.3.2 Complete ly different interactions for different cases
Suppose we now want to fit a model to th e simba2 data which is Poisson in the control group ,
and Strauss in the treatment group. Th e Poisson and Strauss interactions can be given as separate
columns in a hyperframe of interactions:
interaction=hyperframe(po=Poisson(), str=Strauss(0.07))
What do we write for the iformula? The fo llowing will not work:
iformula=
~
ifelse(group=="control", po, str)
This does not work because the Poisson and Strauss models are ‘incompatible’ inside such expres-
sions. The ca nonical sufficient statistics for the Poisson and Strauss processes do not have the same
dimension. Internally in mppm we translate ...
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Publisher Resources

ISBN: 9781482210217