polars.Series.interpolate

Series.interpolate(method: InterpolationMethod = 'linear') → Series

Interpolate intermediate values.

Nulls at the beginning and end of the series remain null.

Parameters:

method{‘linear’, ‘nearest’}

Interpolation method.

Examples

>>> s = pl.Series("a", [1, 2, None, None, 5])
>>> s.interpolate()
shape: (5,)
Series: 'a' [f64]
[
    1.0
    2.0
    3.0
    4.0
    5.0
]