R Observatory: Metrics for ddModel version 0.2.9.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ddModel

0.2.9.0Package record

The Decision Diffusion Model

0packages depend

2.1Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Yi-Shin LinCRAN page ↗

Provides functions for computing the density, distribution, and random generation of the Decision Diffusion model (DDM), a widely used cognitive model for analysing choice and response time data. The package allows model specification, including the ability to fix, constrain, or vary parameters across experimental conditions. While it does not include a built-in optimiser, it supports likelihood evaluation and can be integrated with external tools for parameter estimation. Functions for simulating synthetic datasets are also provided. This package is intended for researchers modelling speeded decision-making in behavioural and cognitive experiments. For more information, see Voss, Rothermund, and Voss (2004) doi:10.3758/BF03196893, Voss and Voss (2007) doi:10.3758/BF03192967, and Ratcliff and McKoon (2008) doi:10.1162/neco.2008.12-06-420.

Install

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

install.packages("ddModel", 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-ddmodel

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-ddModel

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 3.0 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-05-12
WARNING12 OK, 1 WARNING2026-05-11
OK14 OK2026-04-22

Show 2 earlier changesHide 2 earlier changes

ERROR13 OK, 1 ERROR2026-04-18
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2.9.0

READMEYes · 682 wordsVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 5 (1 internal)includes a package overview page
Examples that run: 100%3 run in a plain check (2 of them under a condition)
Exported functions with examples: 67%
Documented parameters: 90%
Return-value docs: 100%
Help pages citing references: 40%

How these are measured

Downloads

2.1K

CRAN downloads in the past year

Rank #22,259 · ~6/day · ~173/mo

Releases R versions

Daily download trend is not available in this view yet.

21530 days

60090 days

2.1K1 year

Compare downloads with other packages →

Also on332 r2u

How downloads are counted

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing ddModel adds 5 packages (5 with compiled code, 2.9 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppArmadillo 1.0 MB, ggdmcHeaders 44 KB.

Depends (1)

R >= 3.3.0

Imports (4)

ggdmcPrior ggdmcModel Rcppmethods

LinkingTo (3)

Rcpp RcppArmadillo ggdmcHeaders

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 (1)

Yi-Shin Lin

Author, Maintainer since 0.2.9.0 (2025)

Releases (1)

R
R 4.6.0 released · 2026-04-24
0.2.9.0Latest
record
2025-09-02 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2025-09-02
Total releases: 1 / 1 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.3.0
Download size: 104 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ddModel")

Format

Lin, Y. (2025). ddModel: The Decision Diffusion Model (Version 0.2.9.0) [Computer software]. https://doi.org/10.32614/CRAN.package.ddModel

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 ddModel version 0.2.9.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →