R Observatory: Metrics for DCEM version 2.0.6

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

DCEM

2.0.6Package record

Clustering Big Data using Expectation Maximization Star (EM*) Algorithm

0packages depend

4.1Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Sharma ParichitCRAN page ↗GitHub ↗Issues ↗

Implements the Improved Expectation Maximisation EM* and the traditional EM algorithm for clustering big data (gaussian mixture models for both multivariate and univariate datasets). This version implements the faster alternative-EM* that expedites convergence via structure based data segregation. The implementation supports both random and K-means++ based initialization. Reference: Parichit Sharma, Hasan Kurban, Mehmet Dalkilic (2022) doi:10.1016/j.softx.2021.100944. Hasan Kurban, Mark Jenne, Mehmet Dalkilic (2016) doi:10.1007/s41060-017-0062-1.

Changes in 2.0.6

Bug Fixes

Reformatted NEWS.md to comply with CommonMark and CRAN requirements.
Incremented version to resolve archival status.
Fixed CITATION file entries to use modern bibentry() syntax.
Removed non-standard files from package build (.github, CRAN-RELEASE, cran-comments.md).

From NEWS.md in the release

Install

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

install.packages("DCEM", 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("parichit/DCEM")

Development version from parichit/DCEM. 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-dcem

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-DCEM

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-DCEM

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: 2.7 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK12 OK2026-04-25
NOTE13 OK, 1 NOTE2026-04-22
ERROR11 OK, 1 NOTE, 1 ERROR2026-04-18

Show 1 earlier changeHide 1 earlier change

NOTE14 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.0.6

READMEYes · 399 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 2.0.6Citation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 28includes a package overview page
Examples that run: 100%3 run in a plain check
Exported functions with examples: 50%
Documented parameters: 93%
Return-value docs: 83%
Help pages citing references: 39%

Vignettes (1)

DCEM HTML

How these are measured

Downloads

4.1K

CRAN downloads in the past year

Rank #7,312 · ~11/day · ~338/mo

Releases R versions

Daily download trend is not available in this view yet.

41230 days

1.2K90 days

4.1K1 year

Compare downloads with other packages →

Also on369 r2u4 autocran

How downloads are counted

Repository

parichit/dcem ↗Account: parichit

3Stars

4Forks

0Open issues

0Open PRs

5Releases

103Commits

2Commit identities

103 commits · Last activity 2026-04-13 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): not measured
Median days to close, 50 most recently updated closed issues: 0
Median days to close, 50 most recently updated closed PRs: not measured

Stars over time

2022-01-17 · 32026-07-07 · 3

How these are measured

PracticesBeta

4 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/parichit/dcem on 2026-10-21.

Continuous integration (1)

GitHub Actions

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing DCEM adds 3 packages (2 with compiled code, 2.8 MB of source tarballs). Heaviest: Rcpp 1.8 MB, mvtnorm 1.0 MB, matrixcalc 30 KB.

Depends (1)

R >= 3.2.0

Imports (4)

mvtnorm matrixcalcMASSRcpp

LinkingTo (1)

Rcpp

Suggests (3)

knitr rmarkdown spelling

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (3)

Sharma Parichit

Author, Maintainer since 0.0.1 (2018), Contributor

Kurban Hasan

Author, Contributor

Dalkilic Mehmet

Author

Listed in earlier versions (1)

Jenne Mark

no longer listed · 0.0.1 to 2.0.4

Releases (9)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
unarchivedReturned to CRAN
2026-04-14
2.0.6Latest
record
2026-04-14 · current release · diff ↗
archivedRemoved from CRAN
2026-03-21
issues were not corrected despite reminders
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
2.0.5
record
2022-01-16 · diff ↗ ·
added 1 export
dcem_predict
R
R 4.1.0 released · 2021-05-18
2.0.4
record
2020-08-02 · diff ↗ ·
added 2 exports
dcem_test, meu_uv
R
R 4.0.0 released · 2020-04-24
2.0.2
record
2020-04-07 · diff ↗
unarchivedReturned to CRAN
2020-02-29
2.0.1
record
2020-02-29 · diff ↗ ·
added 1 export
meu_mv
archivedRemoved from CRAN
2019-12-20
check issues were not corrected in time

Show 6 earlier eventsHide 6 earlier events

2.0.0
record
2019-11-29 · diff ↗ ·
removed 1 export
pattern:^[[:alpha:]]+

added 2 exports
dcem_train, dcem_star_train
1.0.0
record
2019-07-24 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.0.2
record
2019-04-06 · diff ↗
0.0.1
record
2018-09-30
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-09-30
Total releases: 9 / 8 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.2.0
Bundled data: 24 KB / 1 file
Download size: 63 KB

Cite

Cite this package

Run in R for the authors' entry:

citation("DCEM")

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

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 DCEM version 2.0.6 [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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