R Observatory: Metrics for logcondens version 2.1.9

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

logcondens

2.1.9Package record

Estimate a Log-Concave Probability Density from Iid Observations

1packages dependsuggested by 2

97Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Kaspar RufibachCRAN page ↗Website ↗

Given independent and identically distributed observations X(1), ..., X(n), compute the maximum likelihood estimator (MLE) of a density as well as a smoothed version of it under the assumption that the density is log-concave, see Rufibach (2007) and Duembgen and Rufibach (2009). The main function of the package is 'logConDens' that allows computation of the log-concave MLE and its smoothed version. In addition, we provide functions to compute (1) the value of the density and distribution function estimates (MLE and smoothed) at a given point (2) the characterizing functions of the estimator, (3) to sample from the estimated distribution, (5) to compute a two-sample permutation test based on log-concave densities, (6) the ROC curve based on log-concave estimates within cases and controls, including confidence intervals for given values of false positive fractions (7) computation of a confidence interval for the value of the true density at a fixed point. Finally, three datasets that have been used to illustrate log-concave density estimation are made available.

Install

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

install.packages("logcondens", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-logcondens

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-logcondens

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-logcondens

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: 2.5 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-04-29
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.1.9

READMENoVignettesYes · 1 · dynamicNEWSYes · 33% structuredCitation fileYes · computed when R runs itWebsiteYes

Help pages: 34includes a package overview page
Examples that run: 67%12 run in a plain check · 3 never run · 3 hold no code
Exported functions with examples: 53%
Documented parameters: 100%
Return-value docs: 90%
Help pages citing references: 65%

Vignettes (1)

logcondens: Computations Related to Univariate Log-Concave Density Estimation (Duembgen and Rufibach, 2011, Journal of Statistical Software, 39(6), 1-28.) PDF

How these are measured

Downloads

97K

CRAN downloads in the past year

Rank #1,412 · ~266/day · ~8.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

5.6K30 days

18.9K90 days

97K1 year

Compare downloads with other packages →

Also on1.3K r2u6 autocran11 c2d4u

How downloads are counted

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Installing logcondens adds 9 packages (8 with compiled code, 8.0 MB of source tarballs). Heaviest: mclust 2.7 MB, Rcpp 1.8 MB, kernlab 1.0 MB.

Depends (1)

R >= 2.10

Imports (3)

ksgraphicsstats

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Depends 1

Suggested by 2

Depends, Imports or LinkingTo, most downloaded first

smoothtail

Suggests, most downloaded first

pROC logconcens

How these are counted

Code & Tests

Datasets

People & History

People (2)

Kaspar Rufibach

Author, Maintainer since 1.0 (2006)

Duembgen Lutz

Author · added in 2.1.9

Releases (29)

Pick two releases to compare their code metrics.

2.1.9Latest
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2026-04-26 · current release · diff ↗
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R 4.6.0 released · 2026-04-24
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R 4.5.0 released · 2025-04-11
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R 4.4.0 released · 2024-04-24
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R 4.3.0 released · 2023-04-21
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R 4.2.0 released · 2022-04-22
2.1.6
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2021-10-12 · diff ↗
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R 4.1.0 released · 2021-05-18
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R 4.0.0 released · 2020-04-24
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R 3.6.0 released · 2019-04-26
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R 3.5.0 released · 2018-04-23
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R 3.4.0 released · 2017-04-21
2.1.5
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2016-07-14 · diff ↗
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R 3.3.0 released · 2016-05-03

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2.1.4
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R 3.2.0 released · 2015-04-16
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R 3.1.0 released · 2014-04-10
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R 3.0.0 released · 2013-04-03
2.0.9
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2012-10-15 · diff ↗
2.0.8
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2012-10-11 · diff ↗ ·
added 3 exports
logConCI, ftilde, c2hat
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R 2.15.0 released · 2012-03-30
2.0.7
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2012-03-23 · diff ↗
2.0.6
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2011-12-19 · diff ↗ ·
added 1 export
confIntBootLogConROC_t0
2.0.5
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2011-11-29 · diff ↗ ·
added 37 exports
activeSetLogCon, etaphi, evaluateLogConDens, icmaLogCon, intECDF, intF, isoMean, J00, J10, J11, J20, Lhat_eta, Local_LL, Local_LL_all, LocalCoarsen, LocalConvexity, LocalExtend, LocalF, LocalMLE, LocalNormalize, LocalVariance, logConDens, logConROC, logconTwoSample, maxDiffCDF, MLE, phieta, plot.dlc, preProcess, Q00 and 7 more
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R 2.14.0 released · 2011-10-31
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R 2.12.0 released · 2010-10-15
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R 2.11.0 released · 2010-04-22
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R 2.10.0 released · 2009-10-26
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R 2.9.0 released · 2009-04-17
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R 2.4.0 released · 2006-10-03
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2006-09-29
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R 2.3.0 released · 2006-04-24

Package metadata

First published: 2006-09-29
Total releases: 29 / 20 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 2.10
Bundled data: 23 KB / 3 files
Download size: 577 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("logcondens")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

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 logcondens version 2.1.9 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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