Series.between(left, right, inclusive='both')[source]#

Return boolean Series equivalent to left <= series <= right.

This function returns a boolean vector containing True wherever the corresponding Series element is between the boundary values left and right. NA values are treated as False.

  • left (scalar or list-like) – Left boundary.

  • right (scalar or list-like) – Right boundary.

  • inclusive ({"both", "neither", "left", "right"}) –

    Include boundaries. Whether to set each bound as closed or open.

    Changed in version 1.3.0(pandas).


Series representing whether each element is between left and right (inclusive).

Return type


See also


Greater than of series and other.


Less than of series and other.


This function is equivalent to (left <= ser) & (ser <= right)


>>> s = pd.Series([2, 0, 4, 8, np.nan])  

Boundary values are included by default:

>>> s.between(1, 4)  
0     True
1    False
2     True
3    False
4    False
dtype: bool

With inclusive set to "neither" boundary values are excluded:

>>> s.between(1, 4, inclusive="neither")  
0     True
1    False
2    False
3    False
4    False
dtype: bool

left and right can be any scalar value:

>>> s = pd.Series(['Alice', 'Bob', 'Carol', 'Eve'])  
>>> s.between('Anna', 'Daniel')  
0    False
1     True
2     True
3    False
dtype: bool

This docstring was copied from pandas.core.series.Series.