R Observatory: Metrics for ottr version 1.6.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ottr

1.6.0

An R Autograding Extension for Otter-Grader

0packages depend

6.3Kdownloads / year

97.3%test coverage

13/13checks pass

Overview

About

Maintained by Christopher PylesFirst published 2022-02-0712 releasesCRAN page ↗

An R autograding extension for Otter-Grader (https://otter-grader.readthedocs.io). It supports grading R scripts, R Markdown documents, and R Jupyter Notebooks.

Install

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

install.packages("ottr", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-ottr

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-ottr

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-ottr

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

Health

CRAN checks

13OK

Slowest check: 1.2 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 2.18

97.3%

Coverage · measured lines

100%

Documentation · exports

7

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

Documentation

READMEYes · 43 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 29%
Documented parameters: 100%
Return-value docs: 60%
References docs: 0%

Downloads

6.3K

CRAN downloads in the past year

Rank #6,051 · ~17/day · ~528/mo

Releases R versions

Daily download trend is not available in this view yet.

55630 days

1.3K90 days

6.3K1 year

Compare downloads with other packages →

Also on120 r2u22 autocran3K conda_forge

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.0.0

Imports (7)

jsonlite testthattoolsR6 zipmethodsfs

LinkingTo (0)

none

Suggests (7)

IRdisplay mockery rmarkdown stringr withr IRkernel quarto

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (2)

Maintainer (1)

Christopher Pyles

Author, Maintainer

Authors (1)

Christopher Pyles

Author, Maintainer

Copyright holders (1)

UC Berkeley Data Science Education Program

Copyright holder

Package Timeline

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

1.6.0Latest
2026-07-18 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
1.5.3
2025-10-12 · diff ↗
1.5.2
2025-07-02 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.5.1
2024-11-10 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.5.0
2024-02-01 · diff ↗
1.4.0
2023-07-19 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.3.1
2023-01-26 · diff ↗
1.3.0
2022-12-17 · diff ↗
1.2.0
2022-07-06 · diff ↗
1.1.5
2022-06-16 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.1.4
2022-03-23 · diff ↗

Show 2 earlier events

1.1.3
2022-02-07
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2022-02-07
Total releases: 12 / 4 yrs
License: BSD_3_clause + file LICENSE OSI
Minimum R: ≥ 4.0.0
Download size: 27 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ottr")

Format

Pyles, C., & UC Berkeley Data Science Education Program. (2026). ottr: An R Autograding Extension for Otter-Grader (Version 1.6.0) [Computer software]. https://doi.org/10.32614/CRAN.package.ottr

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.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for ottr version 1.6.0 [Data set]. HJJB, LLC. Data release v2026-08-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-21, 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 →