R Observatory: Metrics for Chaos01 version 1.2.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

Chaos01

1.2.1Package record

0-1 Test for Chaos

1packages depend

3.8Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Tomas MartinovicCRAN page ↗Repository ↗

Computes and visualize the results of the 0-1 test for chaos proposed by Gottwald and Melbourne (2004) DOI:10.1137/080718851. The algorithm is available in parallel for the independent values of parameter c. Additionally, fast RQA is added to distinguish chaos from noise.

Changes in 1.2.1

Fixed error in RQA computation introduced in 1.2.0.

From NEWS in the release

Install

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

install.packages("Chaos01", 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-chaos01

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-Chaos01

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-Chaos01

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.0 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK12 OK2026-04-25
NOTE11 OK, 3 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2.1

READMEYes · 39 wordsVignettesNoNEWSYes · 100% structured · mentions 1.2.1Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 10 (1 internal)includes a package overview page
Examples that run: 100%9 run in a plain check
Exported functions with examples: 100%
Documented parameters: 99%
Return-value docs: 100%
Help pages citing references: 80%

How these are measured

Downloads

3.8K

CRAN downloads in the past year

Rank #13,972 · ~10/day · ~316/mo

Releases R versions

Daily download trend is not available in this view yet.

31330 days

84690 days

3.8K1 year

Compare downloads with other packages →

Also on361 r2u5 autocran

How downloads are counted

Repository

code.it4i.cz/adas/chaos01 ↗

Responsiveness

not measured

How these are measured

PracticesBeta

Repository code.it4i.cz/adas/chaos01 is linked, but repository-practices checks have not run for it yet. Checks are GitHub-only for now.

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Installing Chaos01 adds no packages beyond those that come with R.

Depends (1)

R >= 3.5.0

Imports (2)

graphicsstats

LinkingTo (0)

none

Suggests (3)

parallelpbdMPI tuneR

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

dydea

How these are counted

Code & Tests

People & History

People (1)

Tomas Martinovic

Author, Maintainer since 1.0.0 (2016)

Releases (6)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.2.1Latest
record
2019-08-21 · current release · diff ↗
1.2.0
record
2019-08-02 · diff ↗
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
1.1.1
record
2018-02-14 · diff ↗ ·
added 1 export
getVal
1.1.0
record
2018-01-19 · diff ↗ ·
added 2 exports
fast.rqa, rqa.seq
R
R 3.4.0 released · 2017-04-21
1.0.1
record
2016-07-25 · diff ↗
1.0.0
record
2016-07-18

Show 1 earlier eventHide 1 earlier event

R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2016-07-18
Total releases: 6 / 10 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Download size: 23 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("Chaos01")

Format

Martinovic, T. (2019). Chaos01: 0-1 Test for Chaos (Version 1.2.1) [Computer software]. https://doi.org/10.32614/CRAN.package.Chaos01

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for Chaos01 version 1.2.1 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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