This package was removed from CRAN on 2026-03-02. Its history is shown below.

Reason: issues were not corrected in time

Details below reflect version 0.1.14, its last release before removal.

quadtree

0.1.14

Region Quadtrees for Spatial Data

0packages depend

–downloads / year

–test coverage

–checks pass

Overview

About

Maintained by Derek Friend5 releasesCRAN page ↗GitHub ↗

Provides functionality for working with raster-like quadtrees (also called “region quadtrees”), which allow for variable-sized cells. The package allows for flexibility in the quadtree creation process. Several functions defining how to split and aggregate cells are provided, and custom functions can be written for both of these processes. In addition, quadtrees can be created using other quadtrees as “templates”, so that the new quadtree's structure is identical to the template quadtree. The package also includes functionality for modifying quadtrees, querying values, saving quadtrees to a file, and calculating least-cost paths using the quadtree as a resistance surface.

Install

R (source archive)pak (dev)Ubuntu (r2u)openSUSE (OBS)

url <- "https://cran.r-project.org/src/contrib/Archive/quadtree/quadtree_0.1.14.tar.gz"
pkgFile <- "quadtree_0.1.14.tar.gz"
download.file(url, pkgFile)
install.packages(pkgFile, type = "source", repos = NULL)

This package is no longer on CRAN, so install.packages() cannot fetch it by name. This downloads the last archived source (0.1.14) and builds it locally. Install its dependencies first, and note that building from source needs the usual compiler toolchain.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("dfriend21/quadtree")

Development version from dfriend21/quadtree. 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-quadtree

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

# 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-quadtree

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

Health

CRAN checks

CRAN check results are not tracked yet.

Code health

Yes

Tests · ratio 0.71

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Documentation

READMEYes · 121 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

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

Downloads

Releases R versions

Daily download trend is not available in this view yet.

Compare downloads with other packages →

Also on384 r2u22 autocran

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (6)

graphicsgrDevicesmethodsRcpp terrastats

LinkingTo (1)

Rcpp

Suggests (5)

raster sf knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

Code & Tests

Code Composition

C++ 10,703 (57%)R 3,294 (17%)Rd 2,384 (13%)Other 1,285 (7%)Vignettes 766 (4%)C 478 (3%)

Code characteristics

Object systems

S4 class2S4 generic23S4 method28

Cyclomatic complexity: 1.0 median / 6 max
Test cases: 31 / 0.71 per code line

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

468 4 exported

Complexity

2 avg / 6 max

Call network

468 nodes / 246 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

Open call graph →

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (5)

Maintainer (1)

Derek Friend

Author, Maintainer, Copyright holder

Authors (1)

Derek Friend

Author, Maintainer, Copyright holder

Contributors (1)

Andrew Brown

Contributor · added in 0.1.14

Derek Friend

Author, Maintainer, Copyright holder

Randolph Voorhies

Shane Grant

Juan Pedro Bolivar Puente

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
archivedRemoved from CRAN
2026-03-02
issues were not corrected in time
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.1.14
2023-08-29 · diff ↗
unarchivedReturned to CRAN
2023-08-29
archivedRemoved from CRAN
2023-07-18
issues were not corrected in time
R
R 4.3.0 released · 2023-04-21
0.1.10
2022-12-04 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.1.9
2022-02-01 · diff ↗
0.1.8
2022-01-19 · diff ↗
0.1.2
2021-09-20
R
R 4.1.0 released · 2021-05-18

Package metadata

Total releases: 5
License: MIT + file LICENSE OSI
Minimum R: ≥ 2.10
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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