workloopR

1.1.4

Analysis of Work Loops and Other Data from Muscle Physiology Experiments

0packages depend

2.4Kdownloads / year

100.0%test coverage

13/13checks pass

Overview

About

Maintained by Vikram B. BaligaFirst published 2021-05-061 releasesCRAN page ↗GitHub ↗

Functions for the import, transformation, and analysis of data from muscle physiology experiments. The work loop technique is used to evaluate the mechanical work and power output of muscle. Josephson (1985) doi:10.1242/jeb.114.1.493 modernized the technique for application in comparative biomechanics. Although our initial motivation was to provide functions to analyze work loop experiment data, as we developed the package we incorporated the ability to analyze data from experiments that are often complementary to work loops. There are currently three supported experiment types: work loops, simple twitches, and tetanus trials. Data can be imported directly from .ddf files or via an object constructor function. Through either method, data can then be cleaned or transformed via methods typically used in studies of muscle physiology. Data can then be analyzed to determine the timing and magnitude of force development and relaxation (for isometric trials) or the magnitude of work, net power, and instantaneous power among other things (for work loops). Although we do not provide plotting functions, all resultant objects are designed to be friendly to visualization via either base-R plotting or 'tidyverse' functions. This package has been peer-reviewed by rOpenSci (v. 1.1.0).

Install

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

install.packages("workloopR", 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("ropensci/workloopR")

Development version from ropensci/workloopR. 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-workloopr

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-workloopR

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-workloopR

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

Health

CRAN checks

13OK

Slowest check: 2.0 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.28

100.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 98%
Return-value docs: 100%
References docs: 40%

Downloads

2.4K

CRAN downloads in the past year

Rank #16,478 · ~7/day · ~201/mo

Releases R versions

Daily download trend is not available in this view yet.

21530 days

69790 days

2.4K1 year

Compare downloads with other packages →

Also on95 r2u34 autocran

Repository

GitHub ↗ ropensci/workloopr

3Stars

2Forks

0Open issues

0Open PRs

5Releases

99Commits

3Contributors

muscle-physiology-experimentswork-loopmuscle-forcetetanusworkloopddfrr-package

License GPL-3.0 · 99 commits · Last activity 2024-07-17

Repository practices

Upstream repositoryBeta

7 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/ropensci/workloopr on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Research and citation (3)

CITATION.cffcodemeta.jsonJOSS paper

Lint, format, editor (1)

RStudio project

Show all practices

Governance and community (1)

Issue templates

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

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (2)

pracma signal

LinkingTo (0)

none

Suggests (8)

testthat knitr rmarkdown dplyr ggplot2 magrittr purrr tidyr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 2,603 (49%)Rd 1,517 (29%)Vignettes 1,115 (21%)Other 81 (2%)

Code characteristics

Object systems

S36

Cyclomatic complexity: 2.0 median / 12 max
Test cases: 35 / 0.28 per code line

Test coverage

Line coverage

100%

Expression

100.0%

Tests / Examples

100.0% / 73% ex

Functions

29 14 exported

Complexity

3.2 avg / 12 max

Call network

29 nodes / 18 edges

Call graph

Open call graph →

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Lowest coverage

29 functions

Function	Cyclo	Coverage
analyze_workloop exp	7	100%
as_muscle_stim exp	12	100%
fix_GR exp	5	100%
get_wl_metadata exp	1	100%
invert_position exp	2	100%
isometric_timing exp	5	100%

People & History

People (4)

Maintainer (1)

Vikram B. Baliga

Author, Maintainer

Authors (2)

Vikram B. Baliga

Author, Maintainer

Shreeram Senthivasan

Author

Reviewers (2)

Eric Brown

Reviewer

Julia Romanowska

Reviewer

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.1.4Latest
2026-03-10 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2021-05-06
Total releases: 1 / 5 yrs
License: GPL (>= 3) OSI
Download size: 889 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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