R Observatory: Metrics for FCGR version 1.2-0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

FCGR

1.2-0Package record

Fatigue Crack Growth in Reliability

0packages depend

433downloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Antonio MenesesCRAN page ↗

Fatigue Crack Growth in Reliability estimates the distribution of material lifetime due to mechanical fatigue efforts. The 'FCGR' package provides simultaneous crack growth curves fitting to different specimens in materials under mechanical stress efforts. Linear mixed-effects models with smoothing B-Splines and the linearized Paris-Erdogan law are applied. Once defined the fail for a determined crack length, the distribution function of failure times to fatigue is obtained. The density function is estimated by applying nonparametric binned kernel density estimate ('bkde') and the kernel estimator of the distribution function ('kde'). The results of Pinheiro and Bates method based on nonlinear mixed-effects regression ('nlme') can be also retrieved. The package contains the crack.growth(), PLOT.cg(), IB.F(), and Alea.A (database) functions.

Install

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

install.packages("FCGR", 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-fcgr

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-FCGR

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-FCGR

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: 1.1 min · r-oldrel-windows-x86_64

Status changes

OK13 OKNow
OK2 OK2026-09-28

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2-0

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 4
Examples that run: 100%3 run in a plain check
Exported functions with examples: 100%
Documented parameters: 92%
Return-value docs: 100%
Help pages citing references: 75%

How these are measured

Downloads

433

CRAN downloads in the past year

Rank #24,963 · ~1/day · ~36/mo

Releases R versions

Daily download trend is not available in this view yet.

43030 days

43090 days

4331 year

Compare downloads with other packages →

Also on36 r2u3 autocran

How downloads are counted

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing FCGR adds 3 packages (1 with compiled code, 250 KB of source tarballs). Heaviest: sfsmisc 187 KB, kerdiest 45 KB, pspline 18 KB.

Depends (5)

R >= 4.5.0kerdiestKernSmoothnlmeparallel

Imports (4)

MASSmgcvpspline sfsmisc

LinkingTo (0)

none

Suggests (0)

none

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)

Antonio Meneses

Author, Maintainer since 1.0-0 (2015)

Ignacio Lopez-Ullibarri

Contributor

Salvador Naya

Contributor

Javier Tarrio-Saavedra

Contributor

Releases (2)

Pick two releases to compare their code metrics.

unarchivedReturned to CRAN
2026-09-28
1.2-0Latest
record
2026-09-28 · current release · diff ↗
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
archivedRemoved from CRAN
2022-06-24
requires archived package 'kerdiest'
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
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
R
R 3.3.0 released · 2016-05-03
1.0-0
record
2015-10-13
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-10-13
Total releases: 2 / 11 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 4.5.0
Bundled data: 0.7 KB / 1 file
Download size: 13 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("FCGR")

Format

Meneses, A., Lopez-Ullibarri, I., Naya, S., & Tarrio-Saavedra, J. (2026). FCGR: Fatigue Crack Growth in Reliability (Version 1.2-0) [Computer software]. https://doi.org/10.32614/CRAN.package.FCGR

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 FCGR version 1.2-0 [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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