R Observatory: Metrics for APAtree version 1.0.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

This package was removed from CRAN on 2022-12-05. Its history is shown below.

Reason: issues were not corrected despite reminders

Details below reflect version 1.0.1, its last release before removal.

APAtree

1.0.1

Computation of the 'Area Potentially Available' (APA) to Trees

0packages depend

–downloads / year

–test coverage

–checks pass

Overview

About

Maintained by Jonas Glatthorn2 releasesCRAN page ↗GitHub ↗

Maps of the 'area potentially available' (APA) of trees is calculated from mapped forest stands using the approach from Gspaltl et al. (2012) doi:10.1093/forestry/cps052. This is done by computing a rasterized version of 'weighted voronoi diagrams' using a an approximation of the trees competitive ability (e.g., crown radius, leaf area) as weight. The main output are 'Raster*'- objects from the 'raster' package that are stored together with the raw data in apa_list's, the main class of the 'APAtree' package. Aggregation functions are provided to calculate stand characteristics based on APA-maps such as relative proportions according to APA-size and the neighborhood diversity index NDiv (Glatthorn (2021) doi:10.1016/j.ecolind.2021.108073).

Install

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

url <- "https://cran.r-project.org/src/contrib/Archive/APAtree/APAtree_1.0.1.tar.gz"
pkgFile <- "APAtree_1.0.1.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 (1.0.1) 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("JonasGlatthorn/APAtree")

Development version from JonasGlatthorn/APAtree. 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-apatree

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-APAtree

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

Health

CRAN checks

CRAN check results are not tracked yet.

Code health

Yes

Tests · ratio 0.04

not tracked

Coverage

100%

Documentation · exports

11

Dependencies · direct

Documentation

READMEYes · 210 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 33%
References docs: 42%

Downloads

Releases R versions

Daily download trend is not available in this view yet.

Compare downloads with other packages →

Also on324 r2u6 autocran

Dependencies

Declared dependencies

16 external dependencies (excludes base and recommended)

Depends (3)

R >= 4.0.0raster sf

Imports (9)

Rcpp lwgeom FDparallelunitsstatsgraphicsutilsmethods

LinkingTo (2)

BH Rcpp

Suggests (8)

rmarkdown knitr testthat dplyr purrr tibble tidyr openssl

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Other (1)

Jonas Glatthorn

Contributor

Package Timeline

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

R
R 4.3.0 released · 2023-04-21
archivedRemoved from CRAN
2022-12-05
issues were not corrected despite reminders
R
R 4.2.0 released · 2022-04-22
1.0.1
2021-08-17 · diff ↗
1.0.0
2021-08-16
R
R 4.1.0 released · 2021-05-18

Package metadata

Total releases: 2
License: GPL (>= 2) OSI
Minimum R: ≥ 4.0.0
Bundled data: 109 KB / 3 files
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("APAtree")

Format

Glatthorn, J. (n.d.). APAtree: Computation of the 'Area Potentially Available' (APA) to Trees (Version 1.0.1) [Computer software]. Retrieved August 14, 2026, from https://CRAN.R-project.org/package=APAtree

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 APAtree version 1.0.1 [Data set]. HJJB, LLC. Data release v2026-08-13. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-13, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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