crossfit

0.1.3

A Graph-Based Cross-Fitting Engine in R

0packages depend

2.1Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Etienne PeyrotFirst published 2026-02-192 releasesCRAN page ↗GitHub ↗

Provides a general cross-fitting engine for semiparametric estimation (e.g., double/debiased machine learning). Supports user-defined target functionals and directed acyclic graphs of nuisance learners with per-node training fold widths, target-specific evaluation windows, and fold-allocation modes ("overlap", "disjoint", "independence"). Returns either numeric estimates (mode = "estimate") or cross-fitted prediction functions (mode = "predict"), with configurable aggregation over panels and repetitions, reuse-aware caching, and failure isolation, making it well-suited for simulation studies and large benchmarks.

Install

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

install.packages("crossfit")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

pak::pak("EtiennePeyrot/crossfit-R")

Development version from EtiennePeyrot/crossfit-R. Requires the pak package.

Release

# one-time r2u setup for Ubuntu (noble)

curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash

# then install

sudo apt install r-cran-crossfit

Fast Ubuntu binaries via r2u (no compilation). Run the setup once per machine.

bspm (used by r2u) also needs make: sudo apt install make

sudo dnf copr enable iucar/cran

sudo dnf install R-CRAN-crossfit

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

sudo zypper install R-crossfit

RPMs auto-built from CRAN on openSUSE OBS.

Health

CRAN checks

13OK

Code health

Yes

Tests · ratio 0.74

not tracked

Coverage

100%

Documentation · exports

Yes

Vignettes

Yes

README

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

2.1K

CRAN downloads in the past year

Rank #8,713 · ~6/day · ~178/mo

crossfit Releases R versions

Daily download trend is not available in this view yet.

43030 days

1.3K90 days

2.1K1 year

Compare downloads with other packages →

Also on47 r2u10 autocran

Source & community

GitHub ↗

Repository stars, issues, and contributor activity are not tracked yet.

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (2)

statsutils

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

Code & Tests

Code Composition

R 3,313 (66%)Rd 1,241 (25%)Vignettes 476 (9%)

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

33 8 exported

Complexity

6.2 avg / 48 max

Call network

33 nodes / 37 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

Open call graph →

Loading call graph…

Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (1)

Maintainer (1)

Etienne Peyrot

Author, Maintainer

Authors (1)

Etienne Peyrot

Author, Maintainer

Release timeline

2 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.1.3Latest
2026-03-04 · current release · diff ↗
0.1.1
2026-02-19
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-02-19
Total releases: 2 / 1 yrs
License: GPL-3 OSI
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet