distances: Computes distance between pairs of locations

Description Usage Arguments Value Author(s) See Also Examples

Description

This function computes euclidean distance or distance vector for each pair of a set of spatial locations.

Usage

1

Arguments

coord

A matrix representing the coordinates of each locations. Each row corresponds to one location.

vec

Logical. If FALSE (default), the euclidean distance is computed. Otherwise, “distance vectors” are returned.

Value

If vec = FALSE, this function returns a vector that gives the euclidean distance for each pair of locations. Otherwise, this is a matrix where each column correspond to one dimension - i.e. longitude, latitude, ...

Author(s)

Mathieu Ribatet

See Also

dist

Examples

1
2
3
coords <- cbind(seq(0, 10, by = 2), seq(10, 0, by = -2))
distance(coords)
distance(coords, vec = TRUE)

Example output

 [1]  2.828427  5.656854  8.485281 11.313708 14.142136  2.828427  5.656854
 [8]  8.485281 11.313708  2.828427  5.656854  8.485281  2.828427  5.656854
[15]  2.828427
      [,1] [,2]
 [1,]    2   -2
 [2,]    4   -4
 [3,]    6   -6
 [4,]    8   -8
 [5,]   10  -10
 [6,]    2   -2
 [7,]    4   -4
 [8,]    6   -6
 [9,]    8   -8
[10,]    2   -2
[11,]    4   -4
[12,]    6   -6
[13,]    2   -2
[14,]    4   -4
[15,]    2   -2

SpatialExtremes documentation built on May 2, 2019, 5:45 p.m.