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cvasi

1.5.1

Calibration, Validation, and Simulation of TKTD Models

0packages depend
5.9Kdownloads / year
76.5%test coverage
13/13checks pass

Overview

About
Maintained by Nils KehreinFirst published 2024-05-029 releasesCRAN page ↗GitHub ↗

Eases the use of ecotoxicological effect models. Can simulate common toxicokinetic-toxicodynamic (TK/TD) models such as General Unified Threshold models of Survival (GUTS) and Lemna. It can derive effects and effect profiles (EPx) from scenarios. It supports the use of 'tidyr' workflows employing the pipe symbol. Time-consuming tasks can be parallelized.

Install

Health

CRAN checks
13OK
Slowest check: 8.1 min · r-oldrel-windows-x86_64
Code health
Yes
Tests · ratio 0.68
76.5%
Coverage · measured lines
99%
Documentation · exports
20
Dependencies · direct
Check history
  • OK2026-08-05
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • NOTE2026-08-01
    12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • OK2026-06-09
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • ERROR2026-06-08
    12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
  • OK2026-03-10
    14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMEYes · 388 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo
Examples that run
98%
Documented parameters
100%
Return-value docs
97%
References docs
26%

Downloads

5.9K
CRAN downloads in the past year
Rank #7,228 · ~16/day · ~490/mo
Daily download trend is not available in this view yet.
24630 days
1.2K90 days
5.9K1 year
Compare downloads with other packages →
Also on408 r2u36 autocran

Repository

Repository
5Stars
3Forks
0Open issues
3Open PRs
0Releases
190Commits
4Contributors
ecotoxicologymodelingsimulation
License GPL-3.0 · 190 commits · Last activity 2026-06-22 · 0% stars, 30d

Stars over time

2025-08-05 · 32026-07-07 · 5

Repository practices

Upstream repositoryBeta

6 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/cvasi-tktd/cvasi on 2026-08-23.

Continuous integration (1)
GitHub Actions
Reproducibility and dev environment (1)
data-raw/
Docs source (1)
README.Rmd
Automation and maintenance (1)
Dependabot
Show all practices
Lint, format, editor (1)
RStudio project
Governance and community (1)
CODEOWNERS
How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies
23 external dependencies (excludes base and recommended)
Depends (1)
R >= 3.5.0
LinkingTo (0)
none
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (6)
Maintainer (1)
Author, Maintainer
Authors (3)
Author, Maintainer
Author · added in 1.1.0
Contributors (3)
Contributor
Contributor
Contributor · added in 1.1.0
Package Timeline

9 releases. Pick two to compare their code metrics. R releases are shown for context.

  • R
    R 4.6.0 released · 2026-04-24
  • 1.5.1Latest
    2026-04-11 · current release · diff ↗
  • 1.5.0
    2025-09-11 · diff ↗
  • R
    R 4.5.0 released · 2025-04-11
  • 1.4.0
    2025-02-28 · diff ↗
  • 1.3.1
    2024-11-22 · diff ↗
  • 1.2.0
    2024-09-23 · diff ↗
  • 1.1.3
    2024-07-25 · diff ↗
  • 1.1.0
    2024-05-30 · diff ↗
  • unarchivedReturned to CRAN
    2024-05-30
  • archivedRemoved from CRAN
    2024-05-14
    NO issues were addressed on re-submission
  • 0.10.5
    2024-05-04 · diff ↗
  • 0.10.4
    2024-05-02
  • R
    R 4.4.0 released · 2024-04-24

Package metadata

First published
2024-05-02
Total releases
9 / 2 yrs
License
GPL (>= 3) OSI
Minimum R
≥ 3.5.0
Bundled data
55 KB / 11 files
Download size
663 KB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("cvasi")
Kehrein, N., Gergs, A., Nickisch, D., Vermeiren, P., Witt, J., & Wittwer, T. (2026). cvasi: Calibration, Validation, and Simulation of TKTD Models (Version 1.5.1) [Computer software]. https://doi.org/10.32614/CRAN.package.cvasi

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for cvasi version 1.5.1 [Data set]. HJJB, LLC. Data release v2026-08-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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