pairdist.lpp {spatstat} | R Documentation |
Given a pattern of points on a linear network, compute the matrix of distances between all pairs of points, measuring distance by the shortest path in the network.
## S3 method for class 'lpp' pairdist(X, ..., method="C")
X |
Point pattern on linear network (object of class |
method |
Optional string determining the method of calculation.
Either |
... |
Ignored. |
Given a pattern of points on a linear network, this function computes the matrix of distances between all pairs of points, measuring distance by the shortest path in the network.
If method="C"
the distances are computed using
code in the C language. If method="interpreted"
then the
computation is performed using interpreted R code. The R code is
much slower, but is provided for checking purposes.
A symmetric matrix.
Ang Qi Wei aqw07398@hotmail.com and Adrian Baddeley Adrian.Baddeley@csiro.au http://www.maths.uwa.edu.au/~adrian/
example(lpp) pairdist(X)