Package index • SpecPP

Main functions

Functions to extract the frequnecy-domain features from your point pattern data

periodogram_smooth(): Kernel spectral estimator of a multivatiate (multitype) point pattern

periodogram(): Periodogram of a point pattern

select_band(): Bandwidth selection procedure for kernel spectral density estimator

coherence(): Maximal coherence and partial coherence

Plot functions

Functions to visualize the results.

plot_coher(): Plot coherence and partial coherence

plot_pairs(): Plot all possible spectral density estimates

plot_period(): Plot individual spectral density estimate

Ancillary functions

Building blocks of the main functions, only for expert use.

bartlett_uni(): Scaled Battlett kernel

CohByFreq(): (Partial) coherence for a given frequency

fixpd_fun(): Fix the positive definite issue for a matrix

generate_cate(): Generate all pairwise combinations of mark

generate_freq(): Frequency grid generator

H.h.lambda.1(): Compute \(\hat{H}^{(n)}_{h\hat{\lambda}^{(i)},1}\) in the centered DFT

Hmatrix(): \(H\) components used in coherence.R

IRspec(): Spectrum of the intensity reweighted process

scale2unitarea(): Recale the rectangular image to unit square

smoother(): Smooth an element by averaging its neighbors

taper(): Univariate data taper