LambertW

0.6.9-2

Probabilistic Models to Analyze and Gaussianize Heavy-Tailed, Skewed Data

8packages depend

84.9Kdownloads / year

63.8%test coverage

11/13checks pass

Overview

About

Maintained by Georg M. GoergFirst published 2009-03-2327 releasesCRAN page ↗GitHub ↗

Lambert W x F distributions are a generalized framework to analyze skewed, heavy-tailed data. It is based on an input/output system, where the output random variable (RV) Y is a non-linearly transformed version of an input RV X ~ F with similar properties as X, but slightly skewed (heavy-tailed). The transformed RV Y has a Lambert W x F distribution. This package contains functions to model and analyze skewed, heavy-tailed data the Lambert Way: simulate random samples, estimate parameters, compute quantiles, and plot/ print results nicely. The most useful function is 'Gaussianize', which works similarly to 'scale', but actually makes the data Gaussian. A do-it-yourself toolkit allows users to define their own Lambert W x 'MyFavoriteDistribution' and use it in their analysis right away.

Install

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

install.packages("LambertW", 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("gmgeorg/LambertW")

Development version from gmgeorg/LambertW. 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-lambertw

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-LambertW

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-LambertW

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

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 3.9 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.22

63.8%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-07-11
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-05-02
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-25
11 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-22
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Show 4 earlier snapshots

OK2026-04-16
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-30
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-28
11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 156 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 88%
Documented parameters: 89%
Return-value docs: 92%
References docs: 14%

Downloads

84.9K

CRAN downloads in the past year

Rank #1,590 · ~233/day · ~7.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

3.9K30 days

17.6K90 days

84.9K1 year

Compare downloads with other packages →

Also on1.2K r2u35 autocran4.3K conda_forge80 c2d4u

Repository

GitHub ↗ gmgeorg/lambertw

10Stars

2Forks

0Open issues

1Open PRs

3Releases

51Commits

1Contributors

heavy-tailedheavy-tailed-distributionsskewed-dataleptokurtosisnormalizationnormal-distributiongaussianizegaussianize-data

51 commits · Last activity 2025-08-21

Stars over time

2024-11-30 · 92026-07-07 · 10

Repository practices

Upstream repositoryBeta

Checks run against github.com/gmgeorg/lambertw on 2026-07-26.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

16 external dependencies (excludes base and recommended)

Depends (2)

MASSggplot2

Imports (8)

lamWstatsgraphicsgrDevicesRColorBrewer reshape2 Rcppmethods

LinkingTo (2)

Rcpp lamW

Suggests (10)

bootRsolnp nortest numDeriv testthat data.table moments knitr markdown vars

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

8direct

6indirect

WordOfMouth CryptRndTest PGaGEV bellreg bestNormalize optband shorts rsurv

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

Georg M. Goerg

Author, Maintainer

Authors (1)

Georg M. Goerg

Author, Maintainer

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.6.9-2Latest
2025-08-21 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
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R 4.4.0 released · 2024-04-24
0.6.9-1
2023-11-30 · diff ↗
0.6.9
2023-10-30 · diff ↗
0.6.8
2023-09-03 · diff ↗
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R 4.3.0 released · 2023-04-21
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2022-09-22 · diff ↗
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R 4.2.0 released · 2022-04-22
0.6.7
2022-02-28 · diff ↗
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R 4.1.0 released · 2021-05-18
0.6.6
2020-12-16 · diff ↗
0.6.5
2020-06-08 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26

Show 33 earlier events

R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
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R 3.3.0 released · 2016-05-03
0.6.4
2016-03-29 · diff ↗
0.6.2
2016-02-05 · diff ↗
0.6.0
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0.5.1
2015-04-28 · diff ↗
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R 3.2.0 released · 2015-04-16
0.5
2014-11-22 · diff ↗
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R 3.1.0 released · 2014-04-10
0.2.9.9.5
2014-03-10 · diff ↗
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R 3.0.0 released · 2013-04-03
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R 2.15.0 released · 2012-03-30
0.2.9.9
2012-01-08 · diff ↗
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R 2.14.0 released · 2011-10-31
2.13.1
2011-06-25 · diff ↗
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2011-06-01 · diff ↗
0.2.9
2011-05-11 · diff ↗
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R 2.13.0 released · 2011-04-13
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2011-01-11 · diff ↗
2.12.2
2011-01-10 · diff ↗
0.2.5
2011-01-03 · diff ↗
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R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
0.1.9
2010-01-10 · diff ↗
2.11.0
2010-01-07 · diff ↗
0.1.8
2009-12-29 · diff ↗
R
R 2.10.0 released · 2009-10-26
R
R 2.9.0 released · 2009-04-17
0.1.6
2009-04-14 · diff ↗
0.1.0
2009-03-23 · diff ↗
2.10.0
2009-03-21
R
R 2.8.0 released · 2008-10-20

Package metadata

First published: 2009-03-23
Total releases: 27 / 17 yrs
License: GPL (>= 2) OSI
Bundled data: 26 KB / 2 files
Download size: 508 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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