rosenberg: Rosenberg Wavelet Transform

View source: R/rosenberg.R

rosenbergR Documentation

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.