R Observatory: Metrics for LATERmodel version 0.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

LATERmodel

0.2.0Package record

Linear Approach to Threshold with Ergodic Rate for Reaction Times

0packages depend

2.1Kdownloads / year

86.9%test coverage

13/13flavors OK

Overview

About

Maintained by Maria del Mar QuirogaCRAN page ↗GitHub ↗Website ↗Issues ↗Declared funder: The University of Melbourne

Implements the Linear Approach to Threshold with Ergodic Rate (LATER) model, which predicts distributions of reaction times and summarises them with as little as two free parameters. Allows for easy visualisation and comparison of datasets, along with fitting of datasets using the LATER model.

Changes in 0.2.0

Changed approach to determine start values for sigma and sigma_e parameters, using the skewness of the observed promptness distribution to weight the relationship between the parameters and the empirical standard deviation.
Added the option to perform fitting repeatedly with random offsets (jitters) to the start points (on by default), returning the best of the repeated fits.
Added a processes option in the jitter_settings parameter for fit_data, which controls how many parallel processes are used to run the fits. This is set to 2 by default.
Updated the article with the analysis of the Carpenter & Williams data to include details about the jittering.

From NEWS.md in the release

Install

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

install.packages("LATERmodel", 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("unimelbmdap/LATERmodel")

Development version from unimelbmdap/LATERmodel. 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-latermodel

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-LATERmodel

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-LATERmodel

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: 6.6 min · r-oldrel-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 0.2.0

READMEYes · 347 wordsVignettesNoNEWSYes · 100% structured · mentions 0.2.0Citation fileNoWebsiteYes · pkgdown

The repository also keeps web-only articles.

Help pages: 13
Examples that run: 64%7 run in a plain check · 4 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 91%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

2.1K

CRAN downloads in the past year

Rank #21,710 · ~6/day · ~177/mo

Releases R versions

Daily download trend is not available in this view yet.

25030 days

60890 days

2.1K1 year

Compare downloads with other packages →

Also on73 r2u4 autocran

How downloads are counted

Repository

unimelbmdap/latermodel ↗Organization: unimelbmdap

3Stars

0Forks

1Open issues

0Open PRs

2Releases

179Commits

3Commit identities

179 commits · Last activity 2024-05-06 · 0% stars, 30d · Default branch at 0.2.0.9000, ahead of CRAN 0.2.0 (checked 2026-10-18)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 21
Median days to close, 50 most recently updated closed PRs: 4

Stars over time

2025-01-10 · 22026-07-07 · 3

How these are measured

PracticesBeta

10 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/unimelbmdap/latermodel on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2024-05-06 · The repository has a site deploy workflow

pkgdown site last built 2024-05-06

Reproducibility and dev environment (1)

data-raw/

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Show all practicesHide 1 practice

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing LATERmodel adds 26 packages (12 with compiled code, 16 MB of source tarballs). Heaviest: ggplot2 6.0 MB, isoband 1.5 MB, farver 1.2 MB.

Depends (1)

R >= 4.1

Imports (7)

dplyr ggplot2 rlangstatstibbleparallelmoments

LinkingTo (0)

none

Suggests (6)

lintr styler testthat vdiffr printr withr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (5)

Maria del Mar Quiroga

Author, Maintainer since 0.2.0 (2024)

Andrew Anderson

Author

Damien Mannion

Author

Edoardo Tescari

Author

The University of Melbourne

Copyright holder, Funder

Releases (1)

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.2.0Latest
record
2024-05-03 · current release
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-05-03
Total releases: 1 / 2 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1
Bundled data: 1.8 KB / 2 files
Download size: 92 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("LATERmodel")

Format

Quiroga, M. d. M., The University of Melbourne, Anderson, A., Mannion, D., & Tescari, E. (2024). LATERmodel: Linear Approach to Threshold with Ergodic Rate for Reaction Times (Version 0.2.0) [Computer software]. https://doi.org/10.32614/CRAN.package.LATERmodel

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 LATERmodel version 0.2.0 [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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