R Observatory: Metrics for LGCU version 0.1.5

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

LGCU

0.1.5Package record

Implementation of Learning Gamma CUSUM (Cumulative Sum) Control Charts

0packages depend

2.1Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Harold Manuel Madrid-AlvarezCRAN page ↗GitHub ↗Issues ↗

Implements Cumulative Sum (CUSUM) control charts specifically designed for monitoring processes following a Gamma distribution. Provides functions to estimate distribution parameters, simulate control limits, and apply cautious learning schemes for adaptive thresholding. It supports upward and downward monitoring with guaranteed performance evaluated via Monte Carlo simulations. It is useful for quality control applications in industries where data follows a Gamma distribution. Methods are based on Madrid-Alvarez et al. (2024) doi:10.1002/qre.3464 and Madrid-Alvarez et al. (2024) doi:10.1080/08982112.2024.2440368.

Changes in 0.1.5

🔧 Improvements

Added missing contributors in the Authors@R section of DESCRIPTION.
No functional changes were made.

---

**Note:** This is a minor update to correctly attribute all contributors.

The package functionality remains unchanged.

From NEWS.md in the release

Install

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

install.packages("LGCU", 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("ingharold-madrid/LGCU")

Development version from ingharold-madrid/LGCU. 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-lgcu

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-LGCU

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-LGCU

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
OK14 OK2026-04-22
ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.5

READMEYes · 378 wordsVignettesNoNEWSYes · 67% structured · mentions 0.1.5Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 14
Examples that run: 71%10 run in a plain check · 4 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

2.1K

CRAN downloads in the past year

Rank #21,866 · ~6/day · ~176/mo

Releases R versions

Daily download trend is not available in this view yet.

22930 days

60390 days

2.1K1 year

Compare downloads with other packages →

Also on344 r2u3 autocran

How downloads are counted

Repository

ingharold-madrid/lgcu ↗Account: ingharold-madrid

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2025-03-16

Responsiveness

not measured

How these are measured

PracticesBeta

3 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/ingharold-madrid/lgcu on 2026-10-18.

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing LGCU adds 2 packages (1 with compiled code, 2.3 MB of source tarballs). Heaviest: Rcpp 1.8 MB, tictoc 516 KB.

Depends (1)

R >= 4.0.0

Imports (3)

MASSRcpp tictoc

LinkingTo (1)

Rcpp

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (3)

Harold Manuel Madrid-Alvarez

Author, Maintainer · added in 0.1.5

Juan Carlos Garcia-Diaz

Author · added in 0.1.5

Victor Gustavo Tercero-Gomez

Author · added in 0.1.5

Maintainer since 0.1.2 (2025)

Releases (3)

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
0.1.5Latest
record
2025-03-17 · current release · diff ↗
0.1.4
record
2025-03-11 · diff ↗
0.1.2
record
2025-03-10
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2025-03-10
Total releases: 3 / 1 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.0.0
Download size: 28 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("LGCU")

Format

Madrid-Alvarez, H. M., Garcia-Diaz, J. C., & Tercero-Gomez, V. G. (2025). LGCU: Implementation of Learning Gamma CUSUM (Cumulative Sum) Control Charts (Version 0.1.5) [Computer software]. https://doi.org/10.32614/CRAN.package.LGCU

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 LGCU version 0.1.5 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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