R Observatory: Metrics for dtt version 0.1-2.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

dtt

0.1-2.1Package record

Discrete Trigonometric Transforms

4packages depend

100.1Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Lukasz KomstaCRAN page ↗Website ↗

Provides functions for 1D and 2D Discrete Cosine Transform (DCT), Discrete Sine Transform (DST) and Discrete Hartley Transform (DHT).

Install

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

install.packages("dtt", 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-dtt

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-dtt

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-dtt

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: 40 s · 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 0.1-2.1

READMENoVignettesNoNEWSNoCitation fileNoWebsiteYes

Help pages: 3includes a package overview page
Examples that run: 100%2 run in a plain check
Exported functions with examples: 100%
Documented parameters: not tracked
Return-value docs: not tracked
Help pages citing references: 67%

How these are measured

Downloads

100.1K

CRAN downloads in the past year

Rank #1,562 · ~274/day · ~8.3K/mo

Releases R versions

Daily download trend is not available in this view yet.

5.7K30 days

15.1K90 days

100.1K1 year

Compare downloads with other packages →

Also on866 r2u5 autocran2.2K conda_forge127 c2d4u

How downloads are counted

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

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

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

4direct

26indirect

Imports 4

Depends, Imports or LinkingTo, most downloaded first

syuzhet PSSMCOOL vstdct sdf.test

How these are counted

Code & Tests

People & History

People (1)

Lukasz Komsta

Author, Maintainer since 0.1-1 (2007)

Releases (3)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.1-2.1Latest
record
2025-06-17 · current release · diff ↗
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
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
0.1-2
record
2013-12-30 · diff ↗
R
R 3.0.0 released · 2013-04-03

Show 2 earlier eventsHide 2 earlier events

0.1-1
record
2012-10-29
R
R 2.15.0 released · 2012-03-30

Package metadata

First published: 2012-10-29
Total releases: 3 / 14 yrs
License: GPL (>= 2) OSI
Download size: 3.2 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("dtt")

Format

Komsta, L. (2025). dtt: Discrete Trigonometric Transforms (Version 0.1-2.1) [Computer software]. https://doi.org/10.32614/CRAN.package.dtt

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 dtt version 0.1-2.1 [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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