polars.LazyFrame.shift_and_fill

LazyFrame.shift_and_fill(fill_value: Expr | int | str | float, *, n: int = 1) → Self

Shift values by the given number of places and fill the resulting null values.

Deprecated since version 0.19.12: Use shift() instead.

Parameters:

fill_value

fill None values with the result of this expression.

n

Number of places to shift (may be negative).