Pairwise Distances Between Two Different Multi-Dimensional Point Patterns
Computes the distances between pairs of points taken from two different multi-dimensional point patterns.
## S3 method for class 'ppx' crossdist(X, Y, ...)
X,Y |
Multi-dimensional point patterns (objects of class |
... |
Arguments passed to |
Given two point patterns in multi-dimensional space, this function computes the Euclidean distance from each point in the first pattern to each point in the second pattern, and returns a matrix containing these distances.
This is a method for the generic function crossdist
for three-dimensional point patterns (objects of class "ppx").
This function expects two multidimensional
point patterns X and Y, and returns the matrix
whose [i,j] entry is the distance from X[i] to
Y[j].
By default, both spatial and temporal coordinates are extracted.
To obtain the spatial distance between points in a space-time point
pattern, set temporal=FALSE.
A matrix whose [i,j] entry is the distance
from the i-th point in X
to the j-th point in Y.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au
df <- data.frame(x=runif(3),y=runif(3),z=runif(3),w=runif(3)) X <- ppx(data=df) df <- data.frame(x=runif(5),y=runif(5),z=runif(5),w=runif(5)) Y <- ppx(data=df) d <- crossdist(X, Y)
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