R Observatory: Metrics for ValCurvaR version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ValCurvaR

0.1.0Package record

Validation of Analytical Calibration Curves

0packages depend

421downloads / year

57.7%test coverage

13/13flavors OK

Overview

About

Maintained by Isaque Wilkson de Sousa BrandãoCRAN page ↗GitHub ↗Issues ↗

Provides transparent tools for fitting and evaluating analytical calibration curves. Ordinary and weighted least squares fits are supported, together with lack-of-fit, heteroscedasticity and influence diagnostics, back-calculation, prediction uncertainty and publication-ready base graphics. The workflow is designed to support validation studies rather than rely on a single goodness-of-fit statistic. Methods follow Magnusson and Ornemark (2014) https://www.eurachem.org/images/stories/Guides/pdf/MV_guide_2nd_ed_EN.pdf and International Council for Harmonisation (2023) https://database.ich.org/sites/default/files/ICH_Q2%28R2%29_Guideline_2023_1130_ErrorCorrection_2025.pdf.

Install

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

install.packages("ValCurvaR", 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("isaquebrand/ValCurvaR")

Development version from isaquebrand/ValCurvaR. 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-valcurvar

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-ValCurvaR

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-ValCurvaR

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: 1.2 min · r-oldrel-macos-x86_64

Status changes

OK13 OKNow
OK5 OK2026-09-22

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.0

READMEYes · 192 wordsVignettesYes · 1 · dynamicNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 17
Examples that run: 100%1 run in a plain check
Exported functions with examples: 6%
Documented parameters: 99%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (1)

Eurachem A5.2: OLS, WLS e diagnosticos da curva analitica HTML

How these are measured

Downloads

421

CRAN downloads in the past year

Rank #25,095 · ~1/day · ~35/mo

Releases R versions

Daily download trend is not available in this view yet.

37730 days

42190 days

4211 year

Compare downloads with other packages →

Also on6 r2u1 autocran

How downloads are counted

Repository

isaquebrand/valcurvar ↗Account: isaquebrand

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2026-09-11

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/isaquebrand/valcurvar on 2026-10-22.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows

CRAN release process (1)

cran-comments.md

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

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Installing ValCurvaR adds 4 packages (2 with compiled code, 922 KB of source tarballs). Heaviest: zoo 675 KB, lmtest 225 KB, outliers 16 KB.

Depends (0)

none

Imports (6)

graphicsgrDeviceslmtest nortest outliersstats

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

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 (1)

Isaque Wilkson de Sousa Brandão

Author, Maintainer since 0.1.0 (2026)

Releases (1)

0.1.0Latest
record
2026-09-21 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-09-21
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Download size: 59 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ValCurvaR")

Format

Brandão, I. W. d. S. (2026). ValCurvaR: Validation of Analytical Calibration Curves (Version 0.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.ValCurvaR

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 ValCurvaR version 0.1.0 [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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