pairwise_vectors: Compute pairwise distances and angles

In antiphon/Kdirectional: Analysis of anisotropy in point patterns using second order statistics

Compute pairwise distances and angles

Description

Computes pairwise vectors of a 2d or 3d point pattern. Returns circular- or spherical coordinates, depending on the dimension.

Usage

pairwise_vectors(x, from, to, asMatrix = FALSE, as.xyz = FALSE)

Arguments

x	matrix of coordinates.
from	Indices from which to compute
to	Indices to which to compute
asMatrix	return n x n matrices
as.xyz	return as xyz-coordinates instead of polar/spherical

Details

Default is to return the upper triangle (without diagonal) of pairwise distance and angle matrices.

Result will have 2 or 3 columns, where first is the distance and 2(:3) are angle(s).

antiphon/Kdirectional documentation built on Feb. 13, 2023, 6:26 a.m.