Package: swdft 1.0.0

swdft: Sliding Window Discrete Fourier Transform (SWDFT)

Implements the Sliding Window Discrete Fourier Transform (SWDFT). Also provides statistical methods based on the SWDFT, and graphical tools to display the outputs.

Authors:Lee F. Richardson [aut, cre]

swdft_1.0.0.tar.gz
swdft_1.0.0.zip(r-4.7)swdft_1.0.0.zip(r-4.6)swdft_1.0.0.zip(r-4.5)
swdft_1.0.0.tgz(r-4.6-any)swdft_1.0.0.tgz(r-4.5-any)
swdft_1.0.0.tar.gz(r-4.7-any)swdft_1.0.0.tar.gz(r-4.6-any)
swdft_1.0.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
card.svg |card.png
swdft/json (API)
NEWS

# Install 'swdft' in R:
install.packages('swdft', repos = c('https://leerichardson.r-universe.dev', 'https://cloud.r-project.org'))

On CRAN:

Conda:

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

2.70 score 1 stars 6 scripts 139 downloads 16 exports 0 dependencies

Last updated from:224b6663d4. Checks:9 OK. Indexed: yes.

TargetResultTimeFilesSyslog
linux-devel-x86_64OK118
source / vignettesOK228
linux-release-x86_64OK142
macos-release-arm64OK174
macos-oldrel-arm64OK201
windows-develOK84
windows-releaseOK77
windows-oldrelOK89
wasm-releaseOK101

Exports:complex_demodcosinecosregget_max_freqlocal_cosreglocal_signalmatching_demodnew_swdft_cosregnew_swdft_demodnew_swdft_matching_demodprousinesmooth_swdftswdftswdft2dswdft3d

Dependencies:

The swdft Package

Lee Richardson

Rendered fromswdft-intro.Rmdusingknitr::rmarkdownon Jun 02 2026.

Last update: 2019-04-17
Started: 2019-04-17

Readme and manuals

Help Manual

Help pageTopics
Coefficients method for swdft_cosreg objectscoefficients.swdft_mod
Complex Demodulationcomplex_demod
Cosine signal with adjustable parameterscosine
Cosine bell data tapercosine_taper
Cosine regressioncosreg
Covariance between two complex-numbered outputscov_swdft_cnum
Demodulate a Fourier Frequency with the SWDFTdemod_swdft
Dirichlet Kernel (Weight) for arbitrary summation indicesdirichlet
Dirichlet Kerneldirichlet_kernel
Fitted values method for swdft_cosreg objectsfitted.swdft_mod
Extract amplitude and phaseget_aphi
Get range of frequencies to searchget_freq_range
Compute the log likelihoodget_loglik
Get the maximum DFT coefficientget_max_freq
Get range of P's to searchget_p_range
Extract estimator of sigmaget_sigma
Extract signal parametersget_sl
Create taper for the SWDFTget_taper
Log Likelihoodlcr_loglik
Local cosine regressionlocal_cosreg
Local Periodic Signallocal_signal
Matching Demodulationmatching_demod
Simple high pass filtermoving_average
Constructor function for class 'swdft'new_swdft
Constructor function for class swdft_modnew_swdft_cosreg
Constructor function for class 'swdft_demod'new_swdft_demod
Constructor function for class 'swdft_local_cosreg'new_swdft_local_cosreg
Constructor function for class 'swdft_matching_demod'new_swdft_matching_demod
Constructor function for class 'swdft2d'new_swdft2d
Constructor function for class 'swdft3d'new_swdft3d
Plot method for 'swdft' objectplot.swdft
Plot method for swdft_mod objectplot.swdft_mod
The principal nth root of unityprou
Residuals method for swdft_cosreg objectsresiduals.swdft_mod
Sine signal with adjustable parameterssine
Smooth SWDFT coefficients with a convolutionsmooth_pgram
Smooth the SWDFT coefficientssmooth_swdft
Sliding Window Discrete Fourier Transformswdft
3D SWDFT using base Rswdft_base_3d
Sliding Window Discrete Fourier Transform with base Rswdft_fft
Sliding Window Discrete Fourier Transform using fftwswdft_fftw
Convert the SWDFT to proportions of frequencyswdft_to_props
2D Sliding Window Discrete Fourier Transformswdft2d
2D Sliding Window Discrete Fourier Transform using base Rswdft2d_fft
2D Sliding Window Discrete Fourier Transform using fftwswdft2d_fftw
3D Sliding Window Discrete Fourier Transformswdft3d
Phase unwrappingunwrap_phase