quollr

1.0.6

Visualising How Nonlinear Dimension Reduction Warps Your Data

1packages depend

3.9Kdownloads / year

66.5%test coverage

13/13checks pass

Overview

About

Maintained by Jayani P. GamageFirst published 2024-03-056 releasesCRAN page ↗GitHub ↗

To construct a model in 2-D space from 2-D nonlinear dimension reduction data and then lift it to the high-dimensional space. Additionally, provides tools to visualise the model overlay the data in 2-D and high-dimensional space. Furthermore, provides summaries and diagnostics to evaluate the nonlinear dimension reduction layout.

Install

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

install.packages("quollr", 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("jayanilakshika/quollr")

Development version from jayanilakshika/quollr. 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-quollr

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-quollr

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-quollr

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

Health

CRAN checks

13OK

Slowest check: 5.6 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 4.20

66.5%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-07-10
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-19
11 OK · 0 NOTE · 0 WARNING · 2 ERROR · 0 FAILURE
OK2026-06-13
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-04
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-05-14
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 5 earlier snapshots

ERROR2026-05-11
11 OK · 0 NOTE · 0 WARNING · 2 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
12 OK · 1 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 363 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 99%
Return-value docs: 95%
References docs: 0%

Downloads

3.9K

CRAN downloads in the past year

Rank #16,012 · ~11/day · ~322/mo

Releases R versions

Daily download trend is not available in this view yet.

22330 days

67990 days

3.9K1 year

Compare downloads with other packages →

Also on558 r2u41 autocran

Repository

GitHub ↗ jayanilakshika/quollr

8Stars

1Forks

1Open issues

1Open PRs

5Releases

411Commits

2Contributors

411 commits · Last activity 2026-06-09 · 0% stars, 30d

Stars over time

2025-07-04 · 62026-07-07 · 8

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/jayanilakshika/quollr on 2026-07-30.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Docs source (1)

README.Rmd

Show all practices

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

23 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (18)

cli crosstalk dplyr ggplot2gridhtmltools interp (>= 1.1-6)langevitour patchwork plotly proxy purrr Rcpp rsamplestatstibble tidyr tidyselect

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (5)

detourr knitr rmarkdown testthat vdiffr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

polarisR

Code & Tests

Datasets

People & History

People (5)

Maintainer (1)

Jayani P. Gamage

Author, Maintainer · added in 0.3.7

Authors (5)

Jayani P. Gamage

Author, Maintainer · added in 0.3.7

Author

Author

Author

Author

Listed in earlier versions (1)

Jayani P.G. Lakshika

no longer listed · 0.1.1

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.0.6Latest
2025-12-18 · current release · diff ↗
1.0.4
2025-12-15 · diff ↗
1.0.1
2025-11-11 · diff ↗
0.3.13
2025-09-23 · diff ↗
0.3.7
2025-07-22 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.1.1
2024-03-05
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2024-03-05
Total releases: 6 / 2 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1.0
Bundled data: 519 KB / 12 files
Download size: 2.7 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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