Pkg/polars/When

When

struct When

Utility struct for the when-then-otherwise expression.

Represents the state of the expression after when is called. In this state, then must be called to continue to finish the expression.

Static Methods

new

pub fn new(condition: Expr): When

Start a when-then-otherwise expression.

Start a when-then-otherwise expression.

Methods

then

pub fn then(self, expr: Expr): Then

Add a condition to the when-then-otherwise expression.

Add a condition to the when-then-otherwise expression.