Interface to 'fastai'
Overview
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.
- Updated installation function ``
install_fastai``
From NEWS.md in the release
Install
Health
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.
- 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
Documentation
- Help pages
- 970 (1 internal)
- Examples that run
- 0%58 never run
- Exported functions with examples
- 7%
- Documented parameters
- 100%
- Return-value docs
- 97%
- Help pages citing references
- 0%
Downloads
Repository
- 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
Forks over time
Issues over time
PRs over time
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.
The R CMD check workflow runs on Linux, macOS and Windows
Show all practicesHide 1 practice
Dependencies
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.
Code & Tests
People & History
Pick two releases to compare their code metrics.
- RR 4.6.0 released · 2026-04-24
- RR 4.5.0 released · 2025-04-11
- RR 4.4.0 released · 2024-04-24
- 2.2.2Latest
- RR 4.3.0 released · 2023-04-21
- 2.2.12023-03-12 · diff ↗
- RR 4.2.0 released · 2022-04-22
- 2.2.02022-03-21 · diff ↗
- 2.1.02021-10-25 · diff ↗
- 2.0.92021-07-28 · diff ↗
- RR 4.1.0 released · 2021-05-18
- 2.0.82021-05-17 · diff ↗
- 2.0.72021-04-18 · diff ↗
- 2.0.6
- 2.0.52021-03-07 · diff ↗
- 2.0.4
Show 5 earlier eventsHide 5 earlier events
- 2.0.32021-01-09 · 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 - 2.0.22020-12-09 · 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
- 2.0.02020-11-11
- RR 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")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.
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.