Package: fCWTr 0.4.1.9000

fCWTr: Fast Continuous Wavelet Transform

Enables the usage of the fast continuous wavelet transform, originally implemented in the 'C++' library 'fCWT' by Lukas Arts. See Arts, P.A. and Van den Broek, E.L. (2022) <doi:10.1038/s43588-021-00183-z> for details.

Authors:Lukas Schneiderbauer [aut, cre, cph], Lukas P. A. Arts [cph], Egon L. van den Broek [cph]

fCWTr_0.4.1.9000.tar.gz
fCWTr_0.4.1.9000.zip(r-4.7-x86_64)fCWTr_0.4.1.9000.zip(r-4.7-arm64)fCWTr_0.4.1.9000.zip(r-4.6-x86_64)fCWTr_0.4.1.9000.zip(r-4.6-arm64)fCWTr_0.4.1.9000.zip(r-4.5-x86_64)
fCWTr_0.4.1.9000.tgz(r-4.6-x86_64)fCWTr_0.4.1.9000.tgz(r-4.6-arm64)fCWTr_0.4.1.9000.tgz(r-4.5-x86_64)fCWTr_0.4.1.9000.tgz(r-4.5-arm64)
fCWTr_0.4.1.9000.tar.gz(r-4.7-arm64)fCWTr_0.4.1.9000.tar.gz(r-4.7-x86_64)fCWTr_0.4.1.9000.tar.gz(r-4.6-arm64)fCWTr_0.4.1.9000.tar.gz(r-4.6-x86_64)
fCWTr_0.4.1.9000.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
fCWTr/json (API)

# Install 'fCWTr' in R:

install.packages('fCWTr', repos = c('https://lschneiderbauer.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/lschneiderbauer/fcwtr/issues

Pkgdown/docs site:https://lschneiderbauer.github.io

Uses libs:

fftw3– Library for computing Fast Fourier Transforms
c++– GNU Standard C++ Library v3
openmp– GCC OpenMP (GOMP) support library

Datasets:

ts_piano_sample - A simple piano audio sample
ts_sin_440 - Pure sine wave
ts_sin_sin - A sinusoidal wave with varying frequency
ts_sin_superpos - Superimposed sine waves of different frequencies and different amplitudes

On CRAN:

cwt fft fftw signal-processing time-series wavelet-transform wrapper fftw3 cpp openmp

4.18 score 3 stars 4 scripts 13 downloads 11 exports 3 dependencies

Last updated from:f5e3e71820. Checks:15 OK. Indexed: yes.

Target	Result	Time
linux-devel-arm64	OK	127
linux-devel-x86_64	OK	133
source / vignettes	OK	210
linux-release-arm64	OK	121
linux-release-x86_64	OK	170
macos-release-arm64	OK	91
macos-release-x86_64	OK	327
macos-oldrel-arm64	OK	114
macos-oldrel-x86_64	OK	286
windows-devel-arm64	OK	212
windows-devel-x86_64	OK	250
windows-release-arm64	OK	193
windows-release-x86_64	OK	206
windows-oldrel-x86_64	OK	186
wasm-release	OK	132

Exports:avx_enabled du fcwt fcwt_batch openmp_enabled sigma_freq_res_rel sigma_from_freq_res sigma_from_freq_res_rel sigma_from_time_res sigma_res u

Dependencies:cpp11 Rcpp units

Controlling the time/frequency resolution

From uncertainty to resolution | Example: Piano keys | High time resolution, low frequency resolution | Good middle ground | Low time resolution, high frequency resolution

Rendered fromsigma.Rmdusingknitr::rmarkdown

Last update: 2026-11-11
Started: 2025-01-01

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Extract parts of a scalogram	[.fcwtr_scalogram
Convert the scalogram matrix to a tibble	as_tibble.fcwtr_scalogram
Convert the scalogram matrix to a data frame	as.data.frame.fcwtr_scalogram
Extract the data matrix from a scalogram	as.matrix.fcwtr_scalogram
Create a ggplot object resembling a scalogram	autoplot.fcwtr_scalogram
Check for AVX instruction set support	avx_enabled
Drop physical unit	du
Fast continuous wavelet transform	fcwt
Fast continuous wavelet transform - Batch processing	fcwt_batch
Check for OpenMP support	openmp_enabled
Scalogram plotting	plot.fcwtr_scalogram
Print the scalogram	print.fcwtr_scalogram
Combine scalograms in "time" direction	rbind.fcwtr_scalogram
Calculates Relative Frequency Resolution	sigma_freq_res_rel
Determine Sigma from a frequency resolution requirement	sigma_from_freq_res
Determine Sigma from a relative frequency resolution requirement	sigma_from_freq_res_rel
Determine Sigma from a time resolution requirement	sigma_from_time_res
Calculates Time/Frequency Resolution	sigma_res
A simple piano audio sample	ts_piano_sample
Pure sine wave	ts_sin_440
A sinusoidal wave with varying frequency	ts_sin_sin
Superimposed sine waves of different frequencies and different amplitudes	ts_sin_superpos
Augment physical unit	u