R Observatory: Metrics for tacmagic version 0.3.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

tacmagic

0.3.1

Positron Emission Tomography Time-Activity Curve Analysis

0packages depend

2.5Kdownloads / year

82.2%test coverage

11/13checks pass

Overview

About

Maintained by Eric BrownFirst published 2019-03-063 releasesCRAN page ↗GitHub ↗

To facilitate the analysis of positron emission tomography (PET) time activity curve (TAC) data, and to encourage open science and replicability, this package supports data loading and analysis of multiple TAC file formats. Functions are available to analyze loaded TAC data for individual participants or in batches. Major functionality includes weighted TAC merging by region of interest (ROI), calculating models including standardized uptake value ratio (SUVR) and distribution volume ratio (DVR, Logan et al. 1996 doi:10.1097/00004647-199609000-00008), basic plotting functions and calculation of cut-off values (Aizenstein et al. 2008 doi:10.1001/archneur.65.11.1509). Please see the walkthrough vignette for a detailed overview of 'tacmagic' functions.

Install

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

install.packages("tacmagic", 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/tacmagic")

Development version from ropensci/tacmagic. 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-tacmagic

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-tacmagic

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-tacmagic

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

Health

CRAN checks

2NOTE11OK

Failing flavors

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

Slowest check: 1.6 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.83

82.2%

Coverage · measured lines

100%

Documentation · exports

5

Dependencies · direct

Check history

NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 32%

Downloads

2.5K

CRAN downloads in the past year

Rank #16,790 · ~7/day · ~208/mo

Releases R versions

Daily download trend is not available in this view yet.

17730 days

65690 days

2.5K1 year

Compare downloads with other packages →

Also on99 r2u32 autocran

Repository

GitHub ↗ ropensci/tacmagic

6Stars

1Forks

0Open issues

1Open PRs

5Releases

270Commits

3Contributors

positron-emission-tomographypetpet-mrneuroimagingrstatisticspositronmri

License GPL-3.0 · 270 commits · Last activity 2023-08-21

Stars over time

2025-05-24 · 62026-07-07 · 6

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/ropensci/tacmagic on 2026-08-23.

Continuous integration (1)

Travis CI

CRAN release process (1)

cran-comments.md

Research and citation (2)

codemeta.jsonJOSS paper

Coverage (1)

Codecov

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

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.4

Imports (5)

graphicsgrDevicespracmautilsR.matlab

LinkingTo (0)

none

Suggests (5)

testthat knitr rmarkdown covr vdiffr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (4)

Maintainer (1)

Eric Brown

Author, Maintainer

Authors (1)

Eric Brown

Author, Maintainer

Reviewers (2)

Jon Clayden

Reviewer

Brandon Hurr

Reviewer

Other (1)

Ariel Graff-Guerrero

dgs

Package Timeline

3 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
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
0.3.1Latest
2020-12-09 · current release · diff ↗
R
R 4.0.0 released · 2020-04-24
0.3.0
2019-06-07 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.2.1
2019-03-06
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2019-03-06
Total releases: 3 / 7 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.4
Bundled data: 1.8 KB / 1 file
Download size: 572 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Medical Image Analysis

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("tacmagic")

The authors publish a JOSS paper, so they have said how they want this cited. Run citation() and use what it gives you.

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 tacmagic version 0.3.1 [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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