R Observatory: Metrics for eChem version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

eChem

1.0.0Package record

Simulations for Electrochemistry Experiments

0packages depend

2.6Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by David HarveyCRAN page ↗GitHub ↗

Simulates cyclic voltammetry, linear-sweep voltammetry (both with and without stirring of the solution), and single-pulse and double-pulse chronoamperometry and chronocoulometry experiments using the implicit finite difference method outlined in Gosser (1993, ISBN: 9781560810261) and in Brown (2015) doi:10.1021/acs.jchemed.5b00225. Additional functions provide ways to display and to examine the results of these simulations. The primary purpose of this package is to provide tools for use in courses in analytical chemistry.

Install

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

install.packages("eChem", 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("dtharvey/eChem")

Development version from dtharvey/eChem. 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-echem

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-eChem

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-eChem

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘David Harvey <harvey@depauw.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "David",
                    family = "Harvey",
                    role = c("aut", "cre"),
                    email = "harvey@depauw.edu")
as necessary.

CRAN check page ↗

Slowest check: 2.6 min · r-oldrel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTENow
NOTE9 OK, 5 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.0

READMEYes · 288 wordsVignettesYes · 4 · dynamicNEWS· In the repository, left out of the releaseCitation fileNo

Help pages: 25includes a package overview page
Examples that run: 100%20 run in a plain check
Exported functions with examples: 83%
Documented parameters: 92%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (4)

How these are measured

Downloads

2.6K

CRAN downloads in the past year

Rank #16,909 · ~7/day · ~218/mo

Releases R versions

Daily download trend is not available in this view yet.

27130 days

74490 days

2.6K1 year

Compare downloads with other packages →

Also on84 r2u3 autocran135 c2d4u

How downloads are counted

Repository

dtharvey/echem ↗Account: dtharvey

7Stars

1Forks

0Open issues

0Open PRs

0Releases

11Commits

1Commit identities

11 commits · Last activity 2019-07-06 · 0% stars, 30d

Responsiveness

not measured

Stars over time

2023-06-23 · 62026-07-07 · 7

How these are measured

PracticesBeta

3 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/dtharvey/echem on 2026-10-18.

Docs source (1)

GitHub Pages site last deployed 2019-07-06

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Installing eChem adds 7 packages (4 with compiled code, 9.3 MB of source tarballs). Heaviest: magick 4.4 MB, Rcpp 1.8 MB, plot3D 1.8 MB.

Depends (0)

none

Imports (2)

plot3D animation

LinkingTo (0)

none

Suggests (2)

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 (from the free-text Author field) (1)

David Harvey

Maintainer since 1.0.0 (2018)

Releases (1)

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
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
1.0.0Latest
record
2018-07-01 · current release
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-07-01
Total releases: 1 / 8 yrs
License: GPL-2 OSI
Download size: 1.1 MB

Appears in task views

Chemometrics and Computational Physics

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("eChem")

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 eChem version 1.0.0 [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.

Report a problem with this page →