Extract.msr

From spatstat v1.64-1 by Adrian Baddeley

Extract Subset of Signed or Vector Measure

Extract a subset of a signed measure or vector-valued measure.

Keywords: manip, spatial

Usage

# S3 method for msr
[(x, i, j, …)

Arguments

x: A signed or vector measure. An object of class "msr" (see msr).
i: Object defining the subregion or subset to be extracted. Either a spatial window (an object of class "owin"), or a pixel image with logical values, or any type of index that applies to a matrix.
j: Subset index selecting the vector coordinates to be extracted, if x is a vector-valued measure.
…: Ignored.

Details

This operator extracts a subset of the data which determines the signed measure or vector-valued measure x. The result is another measure.

Value

An object of class "msr".

Examples

# NOT RUN {
   X <- rpoispp(function(x,y) { exp(3+3*x) })
   fit <- ppm(X ~x+y)
   rp <- residuals(fit, type="pearson")
   rs <- residuals(fit, type="score")

   rp[square(0.5)]
   rs[ , 2:3]
# }

Documentation reproduced from package spatstat, version 1.64-1, License: GPL (>= 2)

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