R Observatory: Metrics for conTree version 0.3-1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

conTree

0.3-1Package record

Contrast Trees and Boosting

0packages depend

2.5Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Balasubramanian NarasimhanCRAN page ↗GitHub ↗Website ↗Issues ↗

Contrast trees represent a new approach for assessing the accuracy of many types of machine learning estimates that are not amenable to standard (cross) validation methods; see "Contrast trees and distribution boosting", Jerome H. Friedman (2020) doi:10.1073/pnas.1921562117. In situations where inaccuracies are detected, boosted contrast trees can often improve performance. Functions are provided to to build such trees in addition to a special case, distribution boosting, an assumption free method for estimating the full probability distribution of an outcome variable given any set of joint input predictor variable values.

Changes in 0.3-1

Remove Visual Fortran comments in source.

From NEWS.md in the release

Install

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

install.packages("conTree", 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("bnaras/conTree")

Development version from bnaras/conTree. 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-contree

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-conTree

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-conTree

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.4 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.3-1

READMEYes · 115 wordsVignettesYes · 1 · staticNEWSYes · 100% structured · mentions 0.3-1Citation fileNoWebsiteYes

Help pages: 16includes a package overview page
Examples that run: 100%1 run in a plain check
Exported functions with examples: 8%
Documented parameters: 97%
Return-value docs: 100%
Help pages citing references: 13%

Vignettes (1)

conTree

How these are measured

Downloads

2.5K

CRAN downloads in the past year

Rank #19,427 · ~7/day · ~209/mo

Releases R versions

Daily download trend is not available in this view yet.

23330 days

68290 days

2.5K1 year

Compare downloads with other packages →

Also on501 r2u9 autocran

How downloads are counted

Repository

bnaras/contree ↗Account: bnaras

0Stars

1Forks

0Open issues

0Open PRs

1Releases

32Commits

1Commit identities

32 commits · Last activity 2023-11-21

Responsiveness

not measured

Forks over time

2024-12-05 · 12026-07-07 · 1

How these are measured

PracticesBeta

3 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/bnaras/contree on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing conTree adds no packages beyond those that come with R.

Depends (1)

R >= 3.5

Imports (2)

statsgraphics

LinkingTo (0)

none

Suggests (3)

randomForest knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (2)

Balasubramanian Narasimhan

Author, Maintainer since 0.3 (2023)

Jerome Friedman

Author, Copyright holder

Releases (2)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.3-1Latest
record
2023-11-22 · current release · diff ↗
0.3
record
2023-06-07
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2023-06-07
Total releases: 2 / 3 yrs
License: Apache License 2.0 OSI
Minimum R: ≥ 3.5
Bundled data: 1.7 MB / 3 files
Download size: 1.9 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("conTree")

Format

Narasimhan, B., & Friedman, J. (2023). conTree: Contrast Trees and Boosting (Version 0.3-1) [Computer software]. https://doi.org/10.32614/CRAN.package.conTree

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 conTree version 0.3-1 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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