pandas.Series.ptp

Series.ptp(axis=None, skipna=None, level=None, numeric_only=None, **kwargs)
Returns the difference between the maximum value and the
minimum value in the object. This is the equivalent of the numpy.ndarray method ptp.
Parameters:

axis : {index (0)}

skipna : boolean, default True

Exclude NA/null values. If an entire row/column is NA, the result will be NA

level : int or level name, default None

If the axis is a MultiIndex (hierarchical), count along a particular level, collapsing into a scalar

numeric_only : boolean, default None

Include only float, int, boolean data. If None, will attempt to use everything, then use only numeric data

Returns:

ptp : scalar or Series (if level specified)