R Observatory: Metrics for fastdid version 1.0.6

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

fastdid

1.0.6Package record

Fast Staggered Difference-in-Difference Estimators

0packages depend

3Kdownloads / year

91.5%test coverage

8/13flavors OK

Overview

About

Maintained by Lin-Tung TsaiCRAN page ↗GitHub ↗Website ↗Issues ↗

A fast and flexible implementation of Callaway and Sant'Anna's (2021)doi:10.1016/j.jeconom.2020.12.001 staggered Difference-in-Differences (DiD) estimators, 'fastdid' reduces the computation time from hours to seconds, and incorporates extensions such as time-varying covariates and multiple events.

Changes in 1.0.6

Remove archived parglm dependency

From NEWS.md in the release

Install

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

install.packages("fastdid", 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("TsaiLintung/fastdid")

Development version from TsaiLintung/fastdid. 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-fastdid

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-fastdid

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-fastdid

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

5NOTE8OK

Check messages

NOTEdependencies in R coder-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64

r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc

Base package in Suggests/Enhances imported in NAMESPACE:
  ‘parallel’

r-devel-windows-x86_64

Base package in Suggests/Enhances imported in NAMESPACE:
  'parallel'

CRAN check page ↗

Slowest check: 8.9 min · r-release-macos-x86_64

Status changes

NOTE8 OK, 5 NOTENow
NOTE11 OK, 2 NOTE2026-09-12
OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08

Show 3 earlier changesHide 3 earlier changes

OK13 OK2026-05-02
ERROR11 OK, 1 ERROR2026-04-25
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.6

READMEYes · 202 wordsVignettesYes · 2 · dynamicNEWSYes · 100% structured · mentions 1.0.6Citation fileNoWebsiteYes · pkgdown

Help pages: 3
Examples that run: 100%3 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (2)

double HTML
misc HTML

How these are measured

Downloads

3K

CRAN downloads in the past year

Rank #15,710 · ~8/day · ~254/mo

Releases R versions

Daily download trend is not available in this view yet.

27830 days

79090 days

3K1 year

Compare downloads with other packages →

Also on88 r2u4 autocran

How downloads are counted

Repository

tsailintung/fastdid ↗Account: TsaiLintung

32Stars

4Forks

0Open issues

0Open PRs

0Releases

274Commits

1Commit identities

difference-in-differencesevent-studystaggered-did

274 commits · Last activity 2026-09-01 · 0% stars, 30d · Default branch at 1.0.7, ahead of CRAN 1.0.6 (checked 2026-10-21)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 23
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-06-24 · 292026-07-07 · 32

How these are measured

PracticesBeta

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

Checks run against github.com/tsailintung/fastdid on 2026-10-21.

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 (3)

pkgdown

GitHub Pages site last deployed 2026-09-01 · The repository has a site deploy workflow

pkgdown site last built 2026-09-01

Coverage (1)

Coverage reporting

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 v4 (2026-10-20)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Codexfirst seen 2025-06-13
Pull request it wrote: opened by a project member
Claude Codefirst seen 2026-03-20
Seen in the repository: .claude, CLAUDE.md
Named in .Rbuildignore: .claude, CLAUDE.md
Commits: at least 3 crediting it in the message

Models named in its commits

Claude Fable 52 commits · Aug 2026
Claude Opus 51 commit · Aug 2026

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Installing fastdid adds 28 packages (15 with compiled code, 39 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, data.table 5.7 MB.

Depends (1)

R >= 4.1.0

Imports (6)

data.table stringr BMisc collapse dreamerr (>= 1.4.0)ggplot2

LinkingTo (0)

none

Suggests (5)

did knitrparallelrmarkdown tinytest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (3)

Lin-Tung Tsai

Maxwell Kellogg

Contributor

Kuan-Ju Tseng

Contributor

Releases (4)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.0.6Latest
record
2026-01-15 · current release · diff ↗
1.0.5
record
2025-06-23 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.0.3
record
2024-11-04 · diff ↗
1.0.2
record
2024-10-28
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-10-28
Total releases: 4 / 2 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1.0
Download size: 272 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("fastdid")

Format

Tsai, L., Kellogg, M., & Tseng, K. (2026). fastdid: Fast Staggered Difference-in-Difference Estimators (Version 1.0.6) [Computer software]. https://doi.org/10.32614/CRAN.package.fastdid

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 fastdid version 1.0.6 [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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