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fastai

2.2.2Package record

Interface to 'fastai'

0packages dependsuggested by 1
11.3Kdownloads / year
0.0%test coverage
8/13flavors OK

Overview

About

The 'fastai' https://docs.fast.ai/index.html library simplifies training fast and accurate neural networks using modern best practices. It is based on research in to deep learning best practices undertaken at 'fast.ai', including 'out of the box' support for vision, text, tabular, audio, time series, and collaborative filtering models.

Changes in 2.2.2
  • Updated installation function ``install_fastai``

From NEWS.md in the release

Install

Health

CRAN checks
2WARNING3NOTE8OK
Check messages
WARNINGS3 generic/method consistencyr-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
See section ‘Generic functions and methods’ in the ‘Writing R
Extensions’ manual.
WARNINGfor code/documentation mismatchesr-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
WARNINGfor missing documentation entriesr-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
All user-level objects in a package should have documentation entries.
See chapter ‘Writing R documentation files’ in the ‘Writing R
Extensions’ manual.
WARNINGreplacement functionsr-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
The argument of a replacement function which corresponds to the right
hand side must be named ‘value’.
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

Base packages in Suggests/Enhances imported in NAMESPACE:
  ‘stats’ ‘utils’

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

warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
Base packages in Suggests/Enhances imported in NAMESPACE:
  ‘stats’ ‘utils’

r-devel-windows-x86_64

Base packages in Suggests/Enhances imported in NAMESPACE:
  'stats' 'utils'
NOTER code for possible problemsr-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.

warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
NOTERd \usage sectionsr-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
The \usage entries for S3 methods should use the \method markup and not
their full name.
See chapter ‘Writing R documentation files’ in the ‘Writing R
Extensions’ manual.
NOTEforeign function callsr-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.
See chapter ‘System and foreign language interfaces’ in the ‘Writing R
Extensions’ manual.
NOTEwhether startup messages can be suppressedr-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc
warning: Failed to inspect Python interpreter from search path at `/usr/sbin/pypy`
  cause: Can't use Python at `/usr/sbin/pypy`
  cause: Python executable does not support `-I` flag. Please use Python 3.6 or newer.

It looks like this package (or a package it requires) has a startup
message which cannot be suppressed: see ?packageStartupMessage.

CRAN check page ↗

Slowest check: 22.6 min · r-release-windows-x86_64
Status changes
  • WARNING8 OK, 3 NOTE, 2 WARNINGNow
  • WARNING12 OK, 1 WARNING2026-09-10
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK13 OK2026-06-09
  • ERROR12 OK, 1 ERROR2026-06-08
Show 2 earlier changesHide 2 earlier changes
  • OK12 OK2026-04-25
  • NOTE11 OK, 3 NOTE2026-03-10
Advisories

none known

Documentation

Downloads

11.3K
CRAN downloads in the past year
Rank #5,014 · ~31/day · ~942/mo
Daily download trend is not available in this view yet.
60430 days
1.6K90 days
11.3K1 year
Compare downloads with other packages →
Also on104 r2u8 autocran

Repository

121Stars
13Forks
5Open issues
1Open PRs
0Releases
941Commits
8Commit identities
fastairvisiontextcollaborative-filteringtabularmedicalaudio
License file reads as Apache-2.0 · 941 commits · Last activity 2024-04-11 · 0% stars, 30d · Discussions: 1 post
Responsiveness
How these are sampled
PRs merged (all time)
61%
Median days to close, 50 most recently updated closed issues
6
Median days to close, 50 most recently updated closed PRs
0

Stars over time

2024-05-31 · 1172026-07-07 · 121
PracticesBeta

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

Checks run against github.com/eagerai/fastai on 2026-10-18.

Continuous integration (2)
GitHub ActionsR CMD check workflow

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

Governance and community (3)
Code of conductContributing guideIssue templates
Docs source (2)
pkgdown

GitHub Pages site last deployed 2024-04-11

CRAN release process (1)
cran-comments.md
Show all practicesHide 1 practice
Lint, format, editor (1)
RStudio project
How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies
16 external dependencies (excludes base and recommended)

Installing fastai adds 75 packages (38 with compiled code, 67 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, doBy 4.3 MB.

Depends (0)
none
LinkingTo (0)
none
Enhances (0)
none
Reverse dependencies
0direct
0indirect
Suggested by 1
Suggests, most downloaded first

People & History

People (1)
Contributor, Maintainer since 2.0.0 (2020), Copyright holder, Author
Releases (14)

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
  • 2.2.2Latest
    record
    2024-04-11 · current release · diff ↗
  • R
    R 4.3.0 released · 2023-04-21
  • 2.2.1
    record
    2023-03-12 · diff ↗
  • R
    R 4.2.0 released · 2022-04-22
  • 2.2.0
    record
    2022-03-21 · diff ↗
  • 2.1.0
    record
    2021-10-25 · diff ↗
  • 2.0.9
    record
    2021-07-28 · diff ↗
  • R
    R 4.1.0 released · 2021-05-18
  • 2.0.8
    record
    2021-05-17 · diff ↗
  • 2.0.7
    record
    2021-04-18 · diff ↗
  • 2.0.6
    record
    2021-03-28 · diff ↗ ·
    added 3 exports
    create_unet_model, load_learner, nn_loss
  • 2.0.5
    record
    2021-03-07 · diff ↗
  • 2.0.4
    record
    2021-01-29 · diff ↗ ·
    added 2 exports
    os_environ_tpu, to_xla
Show 5 earlier eventsHide 5 earlier events
  • 2.0.3
    record
    2021-01-09 · diff ↗ ·
    added 179 exports
    COCOMetric, COCOMetricType, CutMix, GradientAccumulation, Hook, Hooks, IDMap, MCDropoutCallback, MixHandler, MixUp, ModelResetter, ParamScheduler, PartialDL, RNNRegularizer, SchedCos, SchedExp, SchedLin, SchedNo, SchedPoly, WeightedDL, denormalize_imagenet, dummy_eval, efficientdet_infer_dl, efficientdet_learner, efficientdet_model, efficientdet_predict_dl, efficientdet_train_dl, efficientdet_valid_dl, fastai_version, faster_rcnn_infer_dl and 149 more
  • 2.0.2
    record
    2020-12-09 · diff ↗ ·
    added 36 exports
    AutoConfig, HF_ARCHITECTURES, HF_BaseInput, HF_BaseModelCallback, HF_BaseModelWrapper, HF_BeforeBatchTransform, HF_CausalLMBeforeBatchTransform, HF_QABatchTransform, HF_QABeforeBatchTransform, HF_QstAndAnsModelCallback, HF_QuestionAnswerInput, HF_SummarizationBeforeBatchTransform, HF_SummarizationInput, HF_SummarizationModelCallback, HF_TASKS_ALL, HF_TASKS_AUTO, HF_Text2TextAfterBatchTransform, HF_Text2TextBlock, HF_TextBlock, HF_TokenCategorize, HF_TokenCategoryBlock, HF_TokenClassBeforeBatchTransform, HF_TokenClassInput, HF_TokenTensorCategory, HF_load_dataset, MultiTargetLoss, Zoom_, as_array, calculate_rouge, get_hf_objects and 6 more
  • 2.0.1
    record
    2020-11-12 · diff ↗ ·
    added 7 exports
    %f%, fine_tune, fit_flat_cos, fit_sgdr, narrow, nn_module, os
  • 2.0.0
    record
    2020-11-11
  • R
    R 4.0.0 released · 2020-04-24

Package metadata

First published
2020-11-11
Total releases
14 / 6 yrs
License
Apache License 2.0 OSI
Download size
4.3 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("fastai")
Abdullayev, T. (2024). fastai: Interface to 'fastai' (Version 2.2.2) [Computer software]. https://doi.org/10.32614/CRAN.package.fastai

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.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for fastai version 2.2.2 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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