Package: forcats 1.0.1.9000

Hadley Wickham

forcats: Tools for Working with Categorical Variables (Factors)

Helpers for reordering factor levels (including moving specified levels to front, ordering by first appearance, reversing, and randomly shuffling), and tools for modifying factor levels (including collapsing rare levels into other, 'anonymising', and manually 'recoding').

Authors:Hadley Wickham [aut, cre], Posit Software, PBC [cph, fnd]

forcats_1.0.1.9000.tar.gz
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manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
forcats/json (API)

# Install 'forcats' in R:

install.packages('forcats', repos = c('https://tidyverse.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/tidyverse/forcats/issues

Pkgdown/docs site:https://forcats.tidyverse.org

Datasets:

gss_cat - A sample of categorical variables from the General Social survey

On CRAN:

factor tidyverse

19.67 score 559 stars 1.4k packages 42k scripts 468k downloads 33 mentions 39 exports 10 dependencies

Last updated from:f83e0e682d. Checks:9 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	OK	136
source / vignettes	OK	178
linux-release-x86_64	OK	110
macos-release-arm64	OK	93
macos-oldrel-arm64	OK	116
windows-devel	OK	93
windows-release	OK	104
windows-oldrel	OK	88
wasm-release	OK	115

Exports:%>%as_factor fct fct_anon fct_c fct_collapse fct_count fct_cross fct_drop fct_expand fct_explicit_na fct_infreq fct_inorder fct_inseq fct_lump fct_lump_lowfreq fct_lump_min fct_lump_n fct_lump_prop fct_match fct_na_level_to_value fct_na_value_to_level fct_other fct_recode fct_relabel fct_relevel fct_reorder fct_reorder2 fct_rev fct_shift fct_shuffle fct_unify fct_unique first2 last2 lvls_expand lvls_reorder lvls_revalue lvls_union

Dependencies:cli glue lifecycle magrittr pillar pkgconfig rlang tibble utf8 vctrs

Introduction to forcats

Ordering by frequency | NAs in levels and values | Combining levels | Ordering by another variable | Manually reordering

Rendered fromforcats.Rmdusingknitr::rmarkdown

Last update: 2025-09-24
Started: 2019-01-19

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Convert input to a factor	as_factor as_factor.character as_factor.factor as_factor.logical as_factor.numeric
Create a factor	fct
Anonymise factor levels	fct_anon
Concatenate factors, combining levels	fct_c
Collapse factor levels into manually defined groups	fct_collapse
Count entries in a factor	fct_count
Combine levels from two or more factors to create a new factor	fct_cross
Drop unused levels	fct_drop
Add additional levels to a factor	fct_expand
Reorder factor levels by first appearance, frequency, or numeric order	fct_infreq fct_inorder fct_inseq
Lump uncommon factor levels together into "other"	fct_lump_helpers fct_lump_lowfreq fct_lump_min fct_lump_n fct_lump_prop
Test for presence of levels in a factor	fct_match
Convert between 'NA' values and 'NA' levels	fct_na_level_to_value fct_na_value_to_level
Manually replace levels with "other"	fct_other
Change factor levels by hand	fct_recode
Relabel factor levels with a function, collapsing as necessary	fct_relabel
Reorder factor levels by hand	fct_relevel
Reorder factor levels by sorting along another variable	fct_reorder fct_reorder2 first2 last2
Reverse order of factor levels	fct_rev
Shift factor levels to left or right, wrapping around at end	fct_shift
Randomly permute factor levels	fct_shuffle
Unify the levels in a list of factors	fct_unify
Unique values of a factor, as a factor	fct_unique
A sample of categorical variables from the General Social survey	gss_cat
Low-level functions for manipulating levels	lvls lvls_expand lvls_reorder lvls_revalue
Find all levels in a list of factors	lvls_union