R: Extract Variables from a Formula

extract_vars {mlr3misc} | R Documentation

## Extract Variables from a Formula

### Description

Given a `formula()` `f`, returns all variables used on the left-hand side and right-hand side of the formula.

### Usage

    extract_vars(f)

### Arguments

`f` | (`formula()`).

### Value

(`list()`) with elements `"lhs"` and `"rhs"`, both `character()`.

### Examples

    extract_vars(Species ~ Sepal.Width + Sepal.Length)
    extract_vars(Species ~ .)

[Package mlr3misc version 0.7.0 Index]