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.
Usage
# S3 method for msr
[(x, i, j, …)
Arguments
- x
A signed or vector measure. An object of class
"msr"
(seemsr
).- 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"
.
See Also
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]
# }
Community examples
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