RFIF: Fast Iterative Filtering (FIF) with Portable FFT Backend

Provides an R interface to a C implementation of Fast Iterative Filtering (FIF) for decomposing a univariate signal into intrinsic mode functions (IMFs) and a residual. The package uses Fast Fourier Transform library FFTW, if found. If not, it provides instructions to install it for your OS. This is recommended, as R's internal fft(), while avoiding external FFT dependencies, is two orders of magnitude slower.

Version:	1.0
Suggests:	testthat (≥ 3.0.0), knitr, rmarkdown
Published:	2026-03-31
DOI:	10.32614/CRAN.package.RFIF
Author:	Chuck Coleman [aut, cre]
Maintainer:	Chuck Coleman <cdcoleman113 at gmail.com>
BugReports:	https://github.com/ChuckColeman/RFIF/issues
License:	MIT + file LICENSE
URL:	https://github.com/ChuckColeman/RFIF
NeedsCompilation:	yes
Citation:	RFIF citation info
Materials:	README, NEWS
CRAN checks:	RFIF results [issues need fixing before 2026-04-15]

Documentation:

Reference manual:	RFIF.html , RFIF.pdf
Vignettes:	RFIF: Fast Iterative Filtering in R (source, R code)

Downloads:

Package source:	RFIF_1.0.tar.gz
Windows binaries:	r-devel: RFIF_1.0.zip, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): RFIF_1.0.tgz, r-oldrel (arm64): not available, r-release (x86_64): RFIF_1.0.tgz, r-oldrel (x86_64): RFIF_1.0.tgz

Linking:

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