R Observatory: Metrics for dng version 1.0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

dng

1.0.0Package record

Distributions and Gradients

0packages depend

4Kdownloads / year

90.2%test coverage

13/13flavors OK

Overview

About

Maintained by Feng LiCRAN page ↗GitHub ↗Issues ↗

Provides density, distribution function, quantile function and random generation for the split normal and split-t distributions, and computes their mean, variance, skewness and kurtosis for the two distributions (Li, F, Villani, M. and Kohn, R. (2010) doi:10.1016/j.jspi.2010.04.031).

Changes in 1.0.0

Added gsplitn() for split-normal CDF and log-density gradients.
Added and expanded testthat coverage for split-normal and split-t distributions, moments, random generation, and gradients.
Fixed split-t density and kurtosis bugs.
Modernized package metadata and citation format.
Kept R documentation generated from C++ roxygen comments.

From NEWS.md in the release

Install

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

install.packages("dng", 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("feng-li/dng")

Development version from feng-li/dng. 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-dng

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-dng

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-dng

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: 3.7 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-05-06
NOTE9 OK, 5 NOTE2026-04-22
ERROR8 OK, 5 NOTE, 1 ERROR2026-04-18

Show 1 earlier changeHide 1 earlier change

NOTE9 OK, 5 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.0

READMEYes · 127 wordsVignettesNoNEWSYes · 100% structured · mentions 1.0.0Citation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 5
Examples that run: 100%4 run in a plain check
Exported functions with examples: 80%
Documented parameters: not tracked
Return-value docs: not tracked
Help pages citing references: 80%

How these are measured

Downloads

4K

CRAN downloads in the past year

Rank #7,428 · ~11/day · ~330/mo

Releases R versions

Daily download trend is not available in this view yet.

39230 days

1.2K90 days

4K1 year

Compare downloads with other packages →

Also on386 r2u8 autocran138 c2d4u

How downloads are counted

Repository

feng-li/dng ↗Account: feng-li

0Stars

1Forks

0Open issues

0Open PRs

0Releases

99Commits

2Commit identities

statisticscomputingdistributionskew-normalskew-t

99 commits · Last activity 2026-10-16 · Default branch at 1.1, ahead of CRAN 1.0.0 (checked 2026-10-25)

Responsiveness

not measured

Forks over time

2022-10-01 · 12026-07-07 · 1

How these are measured

PracticesBeta

2 development-tooling and community-health practices detected across 1 family in the upstream repository

Checks run against github.com/feng-li/dng on 2026-10-25.

Continuous integration (2)

GitHub ActionsR CMD check workflow

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

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

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing dng adds 1 package (1 with compiled code, 1.8 MB of source tarballs). Heaviest: Rcpp 1.8 MB.

Depends (1)

R >= 3.0.0

Imports (1)

Rcpp

LinkingTo (1)

Rcpp

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (2)

Feng Li

Author, Maintainer since 1.0.0 (2026)

Jiayue Zeng

Author

Previously maintained by Jiayue Zeng (0.1.0 to 0.2.1).

Releases (5)

Pick two releases to compare their code metrics.

1.0.0Latest
record
2026-05-03 · current release · diff ↗
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
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.2.1
record
2018-06-27 · diff ↗
0.2.0
record
2018-06-15 · diff ↗ ·
removed 8 exports
splitt_mean, splitt_var, splitt_skewness, splitt_kurtosis, dsplitt, psplitt, qsplitt, rsplitt
R
R 3.5.0 released · 2018-04-23
0.1.1
record
2017-11-22 · diff ↗
0.1.0
record
2017-09-20
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2017-09-20
Total releases: 5 / 9 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.0.0
Download size: 88 KB

Appears in task views

Probability Distributions

Cite

Cite this package

Run in R for the authors' entry:

citation("dng")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.1016/j.jspi.2010.04.031.

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 dng version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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