to_factor

Create factor values

Converts values to factor-encoded vectors with derived or explicit levels.

Parameters

• x (Any): The values to convert to factors. Accepts a vector, a list, or a scalar.

• levels (Vector[String] | List[String]): (Optional) Explicit level order. Defaults to sorted unique values.

• ordered (Bool): = false Mark the factor as ordered for ordinal comparisons.

Returns

A factor vector.

Examples

to_factor(["a", "b", "a"])
to_factor(["a", "b", "a"], levels = ["b", "a"], ordered = true)