pandas.core.window.expanding.Expanding.min¶

Expanding.min(*args, **kwargs)[source]¶

Calculate the expanding minimum.

Parameters

Returns

Series or DataFrame: Returned object type is determined by the caller of the expanding calculation.

See also

Examples

Performing a rolling minimum with a window size of 3.

>>> s = pd.Series([4, 3, 5, 2, 6])
>>> s.rolling(3).min()
0    NaN
1    NaN
2    3.0
3    2.0
4    2.0
dtype: float64