edwards97

0.1.1

Langmuir Semi-Empirical Coagulation Model

0packages depend

2.4Kdownloads / year

100.0%test coverage

12/13checks pass

Overview

About

Maintained by Dewey DunningtonFirst published 2020-03-232 releasesCRAN page ↗GitHub ↗

Implements the Edwards (1997) doi:10.1002/j.1551-8833.1997.tb08229.x Langmuir-based semi-empirical coagulation model, which predicts the concentration of organic carbon remaining in water after treatment with an Al- or Fe-based coagulant. Data and methods are provided to optimise empirical coefficients.

Install

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

install.packages("edwards97", 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("paleolimbot/edwards97")

Development version from paleolimbot/edwards97. 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-edwards97

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-edwards97

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-edwards97

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

1NOTE12OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 1.4 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 0.48

100.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 140 wordsVignettesNopkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 80%
Return-value docs: 100%
References docs: 67%

Downloads

2.4K

CRAN downloads in the past year

Rank #17,806 · ~7/day · ~200/mo

Releases R versions

Daily download trend is not available in this view yet.

18530 days

60790 days

2.4K1 year

Compare downloads with other packages →

Also on341 r2u2 autocran

Repository

GitHub ↗ paleolimbot/edwards97

2Stars

2Forks

1Open issues

0Open PRs

2Releases

35Commits

2Contributors

35 commits · Last activity 2022-09-01 · 0% stars, 30d

Stars over time

2022-09-01 · 12026-07-07 · 2

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/paleolimbot/edwards97 on 2026-08-02.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Show all practices

Lint, format, editor (1)

RStudio project

Coverage (1)

Codecov

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.6.0

Imports (6)

rlang tibble broom cli withr glue

LinkingTo (0)

none

Suggests (2)

testthat covr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (5)

Maintainer (1)

Dewey Dunnington

Author, Maintainer

Authors (3)

Dewey Dunnington

Author, Maintainer

William Raseman

Author

Benjamin Trueman

Author

Contributors (2)

Marc Edwards

Contributor

Tai Tseng

Contributor

Package Timeline

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

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
0.1.1Latest
2022-09-01 · current release · diff ↗
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
0.1.0
2020-03-23
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2020-03-23
Total releases: 2 / 6 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.6.0
Bundled data: 16 KB / 1 file
Download size: 635 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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