Computes the matrix of distances between all pairs of points
in a point pattern.
Usage
pairdist(x, y=NULL, method="C")
Arguments
x,y
Arguments specifying the $x$ and $y$ coordinates of
a set of points. Typically x and y would be
numeric vectors of equal length. Alternatively y may be
omitted and x may be
a point patter
method
String specifying which method of calculation to use.
Values are "C" and "interpreted".
Value
A square matrix whose [i,j] entry is the distance
between the points numbered i and j.
Details
This function computes the Euclidean distances between all pairs of
points, and returns the matrix of distances.
If method = "interpreted" then the distances are
computed using interpreted R code only. If method="C"
then C code is used. The C code is marginally faster.