Package index

Fractal & multifractal analysis

Scaling exponents and multifractal spectra.

dfa()

Detrended Fluctuation Analysis (DFA)

higuchi_fd()

Higuchi Fractal Dimension

mfdma()

Multifractal Detrending Moving Average (MFDMA)

chhabra_jensen()

Multifractal Spectrum via the Chhabra-Jensen Method

Nonlinear time-domain features

Fast complexity/roughness descriptors, centralised from mrpheus.

petrosian_fd()

Petrosian Fractal Dimension

hjorth_parameters()

Hjorth Mobility and Complexity

num_zerocross()

Number of Zero Crossings

Entropy

Information-theoretic complexity measures.

perm_entropy()

Permutation Entropy

sample_entropy()

Sample Entropy (SampEn)

Multiscale

Complexity measures across a range of temporal scales.

multiscale_entropy()

Multiscale Entropy (MSE)

Recurrence quantification analysis (RQA)

Recurrence-based complexity and parameter-selection methods.

recurrence_microstate_entropy()

Recurrence Microstates Entropy (maximum-entropy threshold search)

Simulate synthetic test signals

Generators with known/controllable fractal properties, for testing and demonstrating the measurement functions above.

pmodel()

Simulate a Multifractal Time Series Using the p-Model

Colour palette & theme

Shared Rtractor visual identity for ggplot2 figures.

rtractor_palette()

Retrieve an Rtractor palette

rtractor_palettes()

List all available Rtractor palettes

scale_colour_rtractor() scale_color_rtractor()

Rtractor discrete colour scale

scale_colour_rtractor_c() scale_color_rtractor_c()

Rtractor continuous colour scale

scale_fill_rtractor()

Rtractor discrete fill scale

scale_fill_rtractor_c()

Rtractor continuous fill scale

theme_rtractor()

Rtractor ggplot2 theme

Package

Package-level documentation.

Rtractor Rtractor-package

Rtractor: Complexity and Nonlinear Time Series Analysis for Physiological Signals