Tools for Working with Categorical Variables (Factors)


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Documentation for package ‘forcats’ version 0.5.1

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