fdadensity

0.1.4

Functional Data Analysis for Density Functions by Transformation to a Hilbert Space

1packages depend

4.6Kdownloads / year

43.4%test coverage

13/13checks pass

Overview

About

Maintained by Alexander PetersenFirst published 2017-10-164 releasesCRAN page ↗GitHub ↗

An implementation of the methodology described in Petersen and Mueller (2016) doi:10.1214/15-AOS1363 for the functional data analysis of samples of density functions. Densities are first transformed to their corresponding log quantile densities, followed by ordinary Functional Principal Components Analysis (FPCA). Transformation modes of variation yield improved interpretation of the variability in the data as compared to FPCA on the densities themselves. The standard fraction of variance explained (FVE) criterion commonly used for functional data is adapted to the transformation setting, also allowing for an alternative quantification of variability for density data through the Wasserstein metric of optimal transport.

Install

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

install.packages("fdadensity", 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("functionaldata/tDENS")

Development version from functionaldata/tDENS. 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-fdadensity

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-fdadensity

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-fdadensity

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

Health

CRAN checks

13OK

Slowest check: 2.3 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.11

43.4%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 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
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 134 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 88%
Return-value docs: 93%
References docs: 88%

Downloads

4.6K

CRAN downloads in the past year

Rank #10,838 · ~13/day · ~385/mo

Releases R versions

Daily download trend is not available in this view yet.

31330 days

99190 days

4.6K1 year

Compare downloads with other packages →

Also on514 r2u36 autocran88 c2d4u

Repository

GitHub ↗ functionaldata/tdens

3Stars

0Forks

1Open issues

0Open PRs

0Releases

43Commits

3Contributors

43 commits · Last activity 2025-04-14

Stars over time

2022-04-19 · 32026-07-07 · 3

Repository practices

Upstream repositoryBeta

Checks run against github.com/functionaldata/tdens on 2026-07-19.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.3.0

Imports (2)

Rcpp fdapace

LinkingTo (1)

Rcpp

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

frechet

Code & Tests

Code Composition

R 992 (54%)Rd 746 (40%)C++ 115 (6%)

Code characteristics

Cyclomatic complexity: 3.0 median / 10 max
Test cases: 12 / 0.11 per code line

Test coverage

Line coverage

43%

Expression

45.2%

Tests / Examples

43.4% / 76% ex

Functions

24 15 exported

Complexity

3.8 avg / 10 max

Call network

24 nodes / 35 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

24 functions

Function	Cyclo	Coverage
CreateModeOfVarPlotLQ2D exp	10	0%
FPCAdens exp	1	0%
GetFVE exp	6	0%
MakeDENsample exp	2	0%
MakeLQDsample exp	2	0%
dens2lqd exp	5	57%

People & History

People (4)

Maintainer (1)

Alexander Petersen

Maintainer · added in 0.1.4

Authors (3)

P. Z. Hadjipantelis

Author

H.G. Mueller

Author

A. Petersen

Author

Listed in earlier versions (1)

Hadjipantelis

no longer listed · 0.1.4

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.1.4Latest
2025-03-29 · current release · diff ↗
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
0.1.2
2019-12-05 · diff ↗
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
0.1.1
2018-02-08 · diff ↗
0.1.0
2017-10-16
R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2017-10-16
Total releases: 4 / 9 yrs
License: BSD_3_clause + file LICENSE OSI
Minimum R: ≥ 3.3.0
Bundled data: 3.3 MB / 3 files
Download size: 3.4 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Functional Data Analysis

Report a problem with this page →