map_values: Replace Elements of Vectors with New Values

In mlr3misc: Helper Functions for 'mlr3'

Replace Elements of Vectors with New Values

Description

Replaces all values in x which match old with values in new. Values are matched with base::match().

Usage

map_values(x, old, new)

Arguments

x	(⁠vector())⁠.
old	(vector()) Vector with values to replace.
new	(vector()) Values to replace with. Will be forced to the same length as old with base::rep_len().

Value

(vector()) of the same length as x.

Examples

x = letters[1:5]

# replace all "b" with "_b_", and all "c" with "_c_"
old = c("b", "c")
new = c("_b_", "_c_")
map_values(x, old, new)

mlr3misc documentation built on Sept. 13, 2025, 1:10 a.m.