map_values {mlr3misc} | R Documentation

## 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)

[Package mlr3misc version 0.8.0 Index]