R Observatory: Metrics for OneShotEM version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

OneShotEM

0.1.0Package record

Efficient eM-Algorithm for One-Shot Device Data Analysis

0packages depend

468downloads / year

65.5%test coverage

13/13flavors OK

Overview

About

Maintained by Shikhar TyagiCRAN page ↗

Implements the simple and efficient Expectation-Maximization (eM) algorithm proposed by Zhu, Li, Li, and Balakrishnan (2026) doi:10.1080/03610918.2025.2515193 for parameter estimation in one-shot device accelerated life testing (ALT) data. Unlike traditional EM algorithms that impute exact failure times, this method treats failure counts between inspection intervals as missing data, resulting in faster convergence and enhanced numerical stability. Supports Exponential, Weibull, Lognormal, Gamma, and custom user-defined lifetime distributions under log-linear stress models. Standard errors, confidence intervals, model selection statistics (AIC, BIC, AICc, HQIC), residual diagnostics, and visualization tools are provided. References: Balakrishnan and Ling (2012) doi:10.1016/j.csda.2011.09.010, Fan, Balakrishnan, and Chang (2009) doi:10.1080/00949650802142592.

Install

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

install.packages("OneShotEM", 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-oneshotem

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-OneShotEM

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-OneShotEM

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: 1.6 min · r-oldrel-macos-x86_64

Status changes

OK13 OKNow
OK7 OK2026-08-22

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.0

READMENoVignettesYes · 1 · dynamicNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 17 (1 internal)includes a package overview page
Examples that run: 100%6 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 24%

Vignettes (1)

An Efficient eM-Algorithm for One-Shot Device Data Analysis HTML

How these are measured

Downloads

468

CRAN downloads in the past year

Rank #24,662 · ~1/day · ~39/mo

Releases R versions

Daily download trend is not available in this view yet.

19630 days

46890 days

4681 year

Compare downloads with other packages →

Also on14 r2u2 autocran

How downloads are counted

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing OneShotEM adds 1 package (0 with compiled code, 74 KB of source tarballs). Heaviest: numDeriv 74 KB.

Depends (1)

R >= 4.0.0

Imports (6)

statsgraphicsgrDevicesutilsmethodsnumDeriv

LinkingTo (0)

none

Suggests (3)

testthat knitr rmarkdown

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 (4)

Shikhar Tyagi

Author, Maintainer since 0.1.0 (2026)

Arvind Pandey

Author

Bhupendra Singh

Author

Vrijesh Tripathi

Author

Releases (1)

0.1.0Latest
record
2026-08-21 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-08-21
Total releases: 1 / 1 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.0.0
Bundled data: 0.2 KB / 1 file
Download size: 40 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("OneShotEM")

Format

Tyagi, S., Pandey, A., Singh, B., & Tripathi, V. (2026). OneShotEM: Efficient eM-Algorithm for One-Shot Device Data Analysis (Version 0.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.OneShotEM

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 OneShotEM version 0.1.0 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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