# pairdist

0th

Percentile

##### Pairwise distances

Computes the matrix of distances between all pairs of things' in a dataset

Keywords
spatial, math
##### Usage
pairdist(X, ...)
##### Arguments
X
Object specifying the locations of a set of things' (such as a set of points or a set of line segments).
...
Further arguments depending on the method.
##### Details

Given a dataset X and Y (representing either a point pattern or a line segment pattern) pairdist computes the distance between each pair of things' in the dataset, and returns a matrix containing these distances.

The function pairdist is generic, with methods for point patterns (objects of class "ppp"), line segment patterns (objects of class "psp") and a default method. See the documentation for pairdist.ppp, pairdist.psp or pairdist.default for details.

##### Value

• A square matrix whose [i,j] entry is the distance between the things' numbered i and j.

pairdist.ppp, pairdist.psp, pairdist.default, crossdist, nndist, Kest