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.

This swdft package implements the Sliding Window Discrete Fourier Transform (SWDFT) and provides some statistical and graphical tools for analyzing the output.


swdft 1.0.0

Major revision of almost everything, including:

  • S3 objects for all models ("swdft_mod") and the swdft ("swdft")
  • New complex demodulation, matching demodulation, cosine regression, and local cosine regression functions.
  • All notation aligns w/ PhD thesis

swdft 0.0.1

First CRAN Release. Aligns w/ first arXiv submission

Reference manual

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1.0.0 by Lee F. Richardson, a month ago

Browse source code at

Authors: Lee F. Richardson [aut, cre]

Documentation:   PDF Manual  

MIT + file LICENSE license

Imports stats, graphics

Suggests testthat, fftwtools, fields, signal, nloptr, knitr, rmarkdown, devtools

See at CRAN