rosenberg: Rosenberg Wavelet Transform

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

Rosenberg Wavelet Transform

Description

Estimate the wavelet variance suggested by Rosenberg 2004. 2D only, rectangular box only.

Usage

rosenberg(
  x,
  theta = seq(0, pi, l = 50),
  scales = 1:45/180 * pi,
  steps = 180,
  include = 0.75
)

Arguments

x	pp, list with $x~coordinates $bbox~bounding box
theta	directions to estimate the wavelet variance at
scales	angular scales to average over, in radians.
steps	divide the half-circle into this many sectors around each point (default: 180)
include	Only estimate the variance from points in the central region, area fraction given by 'include'. default: 0.5.

Details

Compute the estimator given in Rosenberg 2004.

References

Rosenberg M S, Wavelet analysis for detecting anisotropy in point patterns, J of Veg Sci 2004

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