signal

1.8-1

Signal Processing

91packages depend

445.7Kdownloads / year

75.9%test coverage

11/13checks pass

Overview

About

Maintained by Uwe LiggesFirst published 2006-12-1013 releasesCRAN page ↗

A set of signal processing functions originally written for 'Matlab' and 'Octave'. Includes filter generation utilities, filtering functions, resampling routines, and visualization of filter models. It also includes interpolation functions.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("signal", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-signal

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-signal

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-signal

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc

Slowest check: 1.8 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.32

75.9%

Coverage · measured lines

98%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-06-08
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-07
10 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 82%
Return-value docs: 100%
References docs: 78%

Downloads

445.7K

CRAN downloads in the past year

Rank #625 · ~1.2K/day · ~37.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

13.8K30 days

104.8K90 days

445.7K1 year

Compare downloads with other packages →

Also on2K r2u31 autocran7.6K conda_forge279 bioconda103 c2d4u

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (5)

MASSgraphicsgrDevicesstatsutils

LinkingTo (0)

none

Suggests (1)

pracma

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

91direct

56indirect

and 43 more packages.

Code & Tests

Code Composition

R 5,484 (54%)Rd 2,559 (25%)Other 930 (9%)C 909 (9%)Fortran 342 (3%)

Code characteristics

Object systems

S362

Cyclomatic complexity: 1.0 median / 29 max

Test coverage

Line coverage

76%

Expression

76.4%

Tests / Examples

75.9% / 72% ex

Functions

133 61 exported

Complexity

3.8 avg / 29 max

Call network

133 nodes / 124 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

133 functions

Function	Cyclo	Coverage
FftFilter exp	1	0%
freqs_plot exp	1	0%
freqz_plot exp	1	0%
medfilt1 exp	1	0%
spencerFilter exp	1	0%
zplane exp	1	0%

People & History

People (21)

Maintainer (1)

Uwe Ligges

Author, Maintainer · added in 0.7-3

Authors (3)

Uwe Ligges

Author, Maintainer · added in 0.7-3

Paul Kienzle

Author · added in 0.7-3

Tom Short

Author

Contributors (18)

David Billinghurst

Contributor · added in 0.7-3

Hans-Werner Borchers

Contributor · added in 0.7-0

Andre Carezia

Contributor · added in 0.7-3

Pascal Dupuis

Contributor · added in 0.7-3

John W. Eaton

Contributor · added in 0.7-3

E. Farhi

Contributor · added in 0.7-3

Kai Habel

Contributor · added in 0.7-3

Kurt Hornik

Contributor · added in 0.7-3

Show 10 more contributors

Sebastian Krey

Contributor · added in 0.7-1

Bill Lash

Contributor · added in 0.7-3

Friedrich Leisch

Contributor · added in 0.7-3

Olaf Mersmann

Contributor · added in 0.7-3

Paulo Neis

Contributor · added in 0.7-3

Jaakko Ruohio

Contributor · added in 0.7-3

Sarah Schnackenberg

Contributor · added in 0.7-0

Julius O. Smith III

Contributor · added in 0.7-3

Doug Stewart

Contributor · added in 0.7-3

Andreas Weingessel

Contributor · added in 0.7-3

Listed in earlier versions (4)

Sebastian Krey.

no longer listed · 0.7-0

help files. Ported to R by Tom Short. Later modifications by Uwe Ligges

no longer listed · 0.7-0 to 0.7-2

For Details on the authors of original functions (e.g. ported from Octave) see the code

no longer listed · 0.7-0 to 0.7-2

Olaf Mersmann.

no longer listed · 0.7-1 to 0.7-2

Package Timeline

13 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.8-1Latest
2024-06-26 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
1.8-0
2024-04-17 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
0.7-7
2021-05-25 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
0.7-6
2015-07-30 · diff ↗
0.7-5
2015-05-31 · diff ↗

Show 23 earlier events

R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
0.7-4
2014-04-04 · diff ↗
R
R 3.0.0 released · 2013-04-03
0.7-3
2013-02-11 · diff ↗
0.7-2
2012-06-25 · diff ↗
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
0.7-1
2011-10-08 · diff ↗
0.7-0
2011-06-27 · diff ↗
R
R 2.13.0 released · 2011-04-13
0.6-2
2011-03-22 · diff ↗
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
0.6-1
2010-03-02 · diff ↗
R
R 2.10.0 released · 2009-10-26
R
R 2.9.0 released · 2009-04-17
R
R 2.8.0 released · 2008-10-20
R
R 2.7.0 released · 2008-04-22
R
R 2.6.0 released · 2007-10-03
R
R 2.5.0 released · 2007-04-24
0.5
2006-12-10
R
R 2.4.0 released · 2006-10-03

Package metadata

First published: 2006-12-10
Total releases: 13 / 20 yrs
License: GPL-2 OSI
Minimum R: ≥ 3.5.0
Bundled data: 26 KB / 1 file
Download size: 1.9 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Numerical Mathematics Time Series Analysis

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