polars.LazyFrame.fill_null#
- LazyFrame.fill_null(value: Any | None = None, strategy: FillNullStrategy | None = None, limit: int | None = None, matches_supertype: bool = True) LDF[source]#
Fill null values using the specified value or strategy.
- Parameters:
- value
Value used to fill null values.
- strategy{None, ‘forward’, ‘backward’, ‘min’, ‘max’, ‘mean’, ‘zero’, ‘one’}
Strategy used to fill null values.
- limit
Number of consecutive null values to fill when using the ‘forward’ or ‘backward’ strategy.
- matches_supertype
Fill all matching supertype of the fill
value.