R Observatory: Metrics for crfsuite version 0.4.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

This package was removed from CRAN on 2025-05-10. Its history is shown below.

Reason: issues were not corrected in time

Details below reflect version 0.4.2, its last release before removal.

crfsuite

0.4.2Package record

Conditional Random Fields for Labelling Sequential Data in Natural Language Processing

0packages depend

–downloads / year

–test coverage

–flavors OK

Overview

About

Maintained by Jan WijffelsCRAN page ↗GitHub ↗

Wraps the 'CRFsuite' library https://github.com/chokkan/crfsuite allowing users to fit a Conditional Random Field model and to apply it on existing data. The focus of the implementation is in the area of Natural Language Processing where this R package allows you to easily build and apply models for named entity recognition, text chunking, part of speech tagging, intent recognition or classification of any category you have in mind. Next to training, a small web application is included in the package to allow you to easily construct training data.

Changes in 0.4.2

Drop C++11 specification in Makevars
Remove CITATION file
Minor cosmetic changes to remove some Pedantic compiler messages in rcpp_crfsuite.cpp and crfsuite.h
Comment out rumavl_strerror in rumavl.h as the function is not used and in order to avoid 'warning: function declaration isn't a prototype [-Wstrict-prototypes]'
Fix in mem_mgr of ramvl.c caused by update of valgrind 3.21.0 which is now flagging 'realloc with size 0' in packages
Fix memory leak when extracting the hyperparameters from the model with Trainer::params in crfsuite.hpp

From NEWS.md in the release

Install

R (source archive)pak (dev)

url <- "https://cran.r-project.org/src/contrib/Archive/crfsuite/crfsuite_0.4.2.tar.gz"
pkgFile <- "crfsuite_0.4.2.tar.gz"
download.file(url, pkgFile)
install.packages(pkgFile, type = "source", repos = NULL)

This package is no longer on CRAN, so install.packages() cannot fetch it by name. This downloads the last archived source (0.4.2) and builds it locally. Install its dependencies first, and note that building from source needs the usual compiler toolchain.

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

Development version from bnosac/crfsuite. Installs pak first if it is not already available.

Health

CRAN checks

CRAN check results are not tracked yet.

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.4.2

READMEYes · 295 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 0.4.2Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 13
Examples that run: 82%9 run in a plain check · 2 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 78%
Documented parameters: 83%
Return-value docs: 78%
Help pages citing references: 8%

How these are measured

Downloads

Releases R versions

Daily download trend is not available in this view yet.

Compare downloads with other packages →

Also on402 r2u13 autocran101 c2d4u

How downloads are counted

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (5)

Rcpp data.tableutilstoolsstats

LinkingTo (1)

Rcpp

Suggests (3)

udpipe knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (6)

Jan Wijffels

Author, Maintainer since 0.1 (2018), Copyright holder

Naoaki Okazaki

Author, Contributor, Copyright holder

Bob Jenkins

Author, Contributor

Jorge Nocedal

Author, Contributor, Copyright holder

Jesse Long

Author, Contributor, Copyright holder

BNOSAC

Copyright holder

Releases (11)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
archivedRemoved from CRAN
2025-05-10
issues were not corrected in time
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.4.2
record
2023-09-17 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.4.1
record
2022-11-01 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.4
record
2021-11-12 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.3.4
record
2020-10-10 · diff ↗
0.3.3
record
2020-09-01 · diff ↗
0.3.2
record
2020-05-18 · diff ↗
0.3.1
record
2020-04-27 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.3
record
2019-05-31 · diff ↗ ·
added 2 exports
crf_caretmethod, crf_evaluation

Show 7 earlier eventsHide 7 earlier events

R
R 3.6.0 released · 2019-04-26
unarchivedReturned to CRAN
2018-10-21
0.2
record
2018-10-21 · diff ↗ ·
added 1 export
txt_feature
archivedRemoved from CRAN
2018-10-13
memory-access errors were not corrected
0.1.1
record
2018-10-02 · diff ↗
0.1
record
2018-09-28
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-09-28
Total releases: 11 / 8 yrs
License: BSD_3_clause + file LICENSE OSI
Minimum R: ≥ 2.10
Bundled data: 137 KB / 2 files

Appears in task views

Natural Language Processing

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("crfsuite")

Format

Wijffels, J., BNOSAC, Okazaki, N., Jenkins, B., Nocedal, J., & Long, J. (n.d.). crfsuite: Conditional Random Fields for Labelling Sequential Data in Natural Language Processing (Version 0.4.2) [Computer software]. Retrieved October 25, 2026, from https://CRAN.R-project.org/package=crfsuite

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 crfsuite version 0.4.2 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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