R Observatory: Metrics for gramEvol version 2.1-4

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

gramEvol

2.1-4Package record

Grammatical Evolution for R

0packages depend

4.1Kdownloads / year

74.9%test coverage

11/13flavors OK

Overview

About

Maintained by Farzad NoorianCRAN page ↗GitHub ↗Issues ↗

A native R implementation of grammatical evolution (GE). GE facilitates the discovery of programs that can achieve a desired goal. This is done by performing an evolutionary optimisation over a population of R expressions generated via a user-defined context-free grammar (CFG) and cost function.

Changes in 2.1-4

Add ReplaceInExpression helper function
Update GeneticAlg.int to accept suggestions as a list (Thanks to Rafael Klaic)
Update vignette with new grammar rules
Fix bug in Evolutionary strategy when popsize = 1 (Thanks to Daniel Klotz <https://github.com/danklotz>)
Change ga.mutation parameter to fix its typo (Thanks to Daniel Klotz <https://github.com/danklotz>)

From NEWS.md in the release

Install

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

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

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

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("fnoorian/gramEvol")

Development version from fnoorian/gramEvol. Installs pak first if it is not already available.

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-gramevol

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-gramEvol

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-gramEvol

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Farzad Noorian <farzad.noorian@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Farzad",
                      family = "Noorian",
                      role = c("aut", "cre"),
                      email = "farzad.noorian@gmail.com"),
               person(given = c("Anthony", "Mihirana"),
                      family = "de Silva",
                      role = "aut"))
as necessary.

CRAN check page ↗

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

Status changes

NOTE11 OK, 2 NOTENow
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.1-4

READMEYes · 227 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 2.1-4Citation fileYes · cites a publication

Cites a JSS article

Help pages: 14
Examples that run: 100%14 run in a plain check
Exported functions with examples: 100%
Documented parameters: 93%
Return-value docs: 100%
Help pages citing references: 86%

Vignettes (1)

Grammatical evolution: A tutorial using gramEvol PDF

How these are measured

Downloads

4.1K

CRAN downloads in the past year

Rank #12,400 · ~11/day · ~344/mo

Releases R versions

Daily download trend is not available in this view yet.

32230 days

91090 days

4.1K1 year

Compare downloads with other packages →

Also on75 r2u4 autocran

How downloads are counted

Repository

fnoorian/gramevol ↗Account: fnoorian

29Stars

13Forks

3Open issues

0Open PRs

1Releases

133Commits

5Commit identities

133 commits · Last activity 2023-06-27 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 3
Median days to close, 50 most recently updated closed PRs: 5

Stars over time

2025-08-21 · 282026-07-07 · 29

How these are measured

PracticesBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/fnoorian/gramevol on 2026-10-25.

Docs source (1)

GitHub Pages site last deployed 2016-09-26

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

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

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (2)

rex knitr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (from the free-text Author field) (2)

Farzad Noorian

Anthony Mihirana de Silva

Maintainer since 1.0-1 (2014)

Releases (7)

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
2.1-4Latest
record
2020-07-18 · current release · diff ↗ ·
added 1 export
ReplaceInExpression
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
2.1-3
record
2016-07-04 · diff ↗
R
R 3.3.0 released · 2016-05-03
2.1-2
record
2015-11-16 · diff ↗ ·
added 1 export
gvrule
R
R 3.2.0 released · 2015-04-16
2.0-2
record
2015-02-11 · diff ↗ ·
added 30 exports
grule, gsrule, GrammarMap, GrammarRandomExpression, EvolutionStrategy.int, GrammarStartSymbol, GrammarIsRecursive, GrammarIsTerminal, GrammarGetDepth, GrammarMaxRuleSize, GrammarMaxSequenceLen, GrammarMaxSequenceRange, GrammarNumOfExpressions, c.GERule, as.character.GEPhenotype, as.expression.GEPhenotype, print.GEPhenotype, print.GERule, print.GrammarOverflow, print.GESearch, print.GeneticAlg.int, print.EvolutionStrategy.int, print.GrammaticalEvolution, summary.grammar, print.summary.grammar, is.GrammarOverflow, GrammarGetFirstSequence, GrammarGetNextSequence, GrammaticalExhaustiveSearch, GrammaticalRandomSearch

Show 4 earlier eventsHide 4 earlier events

1.2-1
record
2014-10-22 · diff ↗
1.1-1
record
2014-06-23 · diff ↗
1.0-1
record
2014-05-20
R
R 3.1.0 released · 2014-04-10

Package metadata

First published: 2014-05-20
Total releases: 7 / 12 yrs
License: GPL (>= 2) OSI
Download size: 295 KB

Cite

Cite this package

Run in R for the authors' entry:

citation("gramEvol")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.18637/jss.v071.i01.

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 gramEvol version 2.1-4 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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