R Observatory: Metrics for taperNOR version 0.2.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

taperNOR

0.2.1

Taper, Volume and Bark Thickness Models for Spruce, Pine and Birch in Norway

0packages depend

389downloads / year

57.1%test coverage

13/13checks pass

Overview

About

Maintained by Johannes RahlfFirst published 2026-06-251 releasesCRAN page ↗GitHub ↗

Stem taper, bark thickness, and volume models for the main Norwegian tree species (Norway spruce, Scots pine, and birch), based on Hansen et al. (2023) doi:10.1080/02827581.2023.2243821 and the correction doi:10.1080/02827581.2024.2358467. Provides functions to predict stem diameter along the bole, bark thickness, and stem volume by numerical integration of the taper curve, and to invert these relationships (e.g. estimating height and diameter at breast height from measured diameters).

Install

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

install.packages("taperNOR", 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("SmartForest-no/taperNOR")

Development version from SmartForest-no/taperNOR. 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-tapernor

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-taperNOR

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-taperNOR

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

Health

CRAN checks

13OK

Slowest check: 52 s · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.30

57.1%

Coverage · measured lines

100%

Documentation · exports

1

Dependencies · direct

Check history

OK2026-08-04
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-26
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 250 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 14%

Downloads

389

CRAN downloads in the past year

Rank #23,770 · ~1/day · ~32/mo

Releases R versions

Daily download trend is not available in this view yet.

14730 days

38990 days

3891 year

Compare downloads with other packages →

Also on13 r2u1 autocran

Repository

GitHub ↗ smartforest-no/tapernor

5Stars

2Forks

0Open issues

0Open PRs

1Releases

83Commits

2Contributors

83 commits · Last activity 2026-06-19 · 0% stars, 30d

Stars over time

2024-07-26 · 42026-07-07 · 5

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/smartforest-no/tapernor on 2026-08-16.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (1)

TapeR

LinkingTo (0)

none

Suggests (2)

spelling testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (2)

Maintainer (1)

Johannes Rahlf

Author, Maintainer

Authors (2)

Johannes Rahlf

Author, Maintainer

Endre Hofstad Hansen

Author

Listed in earlier versions (1)

Endre Hofstad

no longer listed · 0.2.1

Package Timeline

1 release. R releases are shown for context.

0.2.1Latest
2026-06-25 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-06-25
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 2.10
Download size: 18 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("taperNOR")

Format

Rahlf, J., & Hansen, E. H. (2026). taperNOR: Taper, Volume and Bark Thickness Models for Spruce, Pine and Birch in Norway (Version 0.2.1) [Computer software]. https://doi.org/10.32614/CRAN.package.taperNOR

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 taperNOR version 0.2.1 [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.

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