measureWeighted: Weighted Version of a Measure

In spatstat.model: Parametric Statistical Modelling and Inference for the 'spatstat' Family

Weighted Version of a Measure

Description

Given a measure m (object of class "msr") and a spatially-varying weight function, construct the weighted version of m.

Usage

measureWeighted(m, w)

Arguments

m	A measure (object of class "msr").
w	A pixel image (object of class "im") or a function(x,y) giving the numeric weight at each spatial location.

Details

For any region of space B, the weighted measure wm has the value

wm(B) = \int_B w(x) dm(x)

In any small region of space, the increment of the weighted measure wm is equal to the increment of the original measure m multiplied by the weight w at that location.

Value

Another measure (object of class "msr") on the same spatial domain.

Author(s)

\adrian

.

References

Halmos, P.R. (1950) Measure Theory. Van Nostrand.

See Also

msr, with.msr, split.msr, measurePositive

Examples

   fit <- ppm(cells ~ x)
   res <- residuals(fit)
   measureWeighted(res, function(x,y){x})

spatstat.model documentation built on Sept. 30, 2024, 9:26 a.m.