R Observatory: Metrics for formulaic version 0.0.8

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

formulaic

0.0.8Package record

Dynamic Generation and Quality Checks of Formula Objects

1packages depend

4Kdownloads / year

80.2%test coverage

13/13flavors OK

Overview

About

Maintained by Anderson NelsonCRAN page ↗GitHub ↗Website ↗Issues ↗

Many statistical models and analyses in R are implemented through formula objects. The formulaic package creates a unified approach for programmatically and dynamically generating formula objects. Users may specify the outcome and inputs of a model directly, search for variables to include based upon naming patterns, incorporate interactions, and identify variables to exclude. A wide range of quality checks are implemented to identify issues such as misspecified variables, duplication, a lack of contrast in the inputs, and a large number of levels in categorical data. Variables that do not meet these quality checks can be automatically excluded from the model. These issues are documented and reported in a manner that provides greater accountability and useful information to guide an investigation of the data.

Changes in 0.0.8

Minor updates:

reduce.existing.formula: A new parameter envir was added to store the environment of the formula, with the global environment as the default.
add.backtick: A new parameter dat was addedBackticks can be added based on the relationship of the object to the data dat. The data can be formatted as either a data.frame or data.table object.

Major updates:

Improvement to accommodate variable transformations. This allows the user to specify more complex quantities, e.g. sqrt(Age^2 * log(Income)). In create.formula, this may be specified in the input.names or the interactions. The calculated inclusion.table of quality checks has been updated to evaluate the transformations and then assess the inclusion and exclusion criteria. Likewise, in add.backtick, a similar evaluation is used to determine whether encompass the object within backticks for use in a formula object. This improves upon the previous version of the formulaic package. Previously the main effects and interactions could only be based on the variables within a data.frame. With this change, the package should better accommodate most transformations of these variables.

From NEWS.md in the release

Install

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

install.packages("formulaic", 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("dachosen1/formulaic")

Development version from dachosen1/formulaic. 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-formulaic

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-formulaic

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-formulaic

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: 1.1 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
WARNING12 OK, 1 WARNING2026-06-08
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.0.8

READMEYes · 659 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 0.0.8Citation fileNoWebsiteYes · pkgdown

Help pages: 4
Examples that run: 100%2 run in a plain check
Exported functions with examples: 67%
Documented parameters: 100%
Return-value docs: 0%
Help pages citing references: 0%

Vignettes (1)

Introduction to Formulaic HTML

How these are measured

Downloads

4K

CRAN downloads in the past year

Rank #12,680 · ~11/day · ~332/mo

Releases R versions

Daily download trend is not available in this view yet.

33030 days

89390 days

4K1 year

Compare downloads with other packages →

Also on71 r2u8 autocran

How downloads are counted

Repository

dachosen1/formulaic ↗Account: dachosen1

10Stars

3Forks

0Open issues

1Open PRs

8Releases

231Commits

6Commit identities

rformula-parsermachine-learningformula-objectsquality-checkstatistical-modelscran

License file reads as GPL-3.0 · 231 commits · Last activity 2026-05-31 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 69%
Median days to close, 50 most recently updated closed issues: 76
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-02-16 · 102026-07-07 · 10

How these are measured

PracticesBeta

9 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/dachosen1/formulaic on 2026-10-22.

Continuous integration (2)

GitHub ActionsR CMD check workflow

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

Governance and community (2)

Code of conductIssue templates

Docs source (2)

pkgdown

GitHub Pages site last deployed 2026-05-31

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 2 practices

CRAN release process (1)

cran-comments.md

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.

Claude Codefirst seen 2026-01-11
Pull request it wrote: opened by a project member
Commits: 3 by its own account

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

5 external dependencies (excludes base and recommended)

Installing formulaic adds 1 package (1 with compiled code, 5.7 MB of source tarballs). Heaviest: data.table 5.7 MB.

Depends (1)

R >= 3.2.0

Imports (2)

data.tablemethods

LinkingTo (0)

none

Suggests (4)

knitr rmarkdown testthat covr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

getDTeval

How these are counted

Code & Tests

Datasets

People & History

People (4)

Anderson Nelson

Author, Contributor, Maintainer since 0.0.1 (2019)

Zichen Huang

Author, Contributor

Caffrey Lee

Author, Contributor

David Shilane

Author

Releases (8)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
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
0.0.8Latest
record
2021-02-15 · current release · diff ↗
0.0.7
record
2020-05-04 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.0.6
record
2020-01-19 · diff ↗
0.0.5
record
2019-12-16 · diff ↗
0.0.4
record
2019-10-08 · diff ↗
0.0.3
record
2019-08-31 · diff ↗
0.0.2
record
2019-08-08 · diff ↗ ·
added 1 export
add.backtick
0.0.1
record
2019-08-05
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-08-05
Total releases: 8 / 7 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.2.0
Bundled data: 124 KB / 1 file
Download size: 188 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("formulaic")

Format

Nelson, A., Huang, Z., Lee, C., & Shilane, D. (2021). formulaic: Dynamic Generation and Quality Checks of Formula Objects (Version 0.0.8) [Computer software]. https://doi.org/10.32614/CRAN.package.formulaic

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 formulaic version 0.0.8 [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.

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