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#  pandas.core.groupby.SeriesGroupBy.is_monotonic_decreasing  #

_ property  _ SeriesGroupBy.  is_monotonic_decreasing  [ [source]
](https://github.com/pandas-
dev/pandas/blob/v2.2.2/pandas/core/groupby/generic.py#L1228-L1245) #

    

Return whether each groupâs values are monotonically decreasing.

Returns  :

    

Series

    

Examples

    
    
    >>> s = pd.Series([2, 1, 3, 4], index=['Falcon', 'Falcon', 'Parrot', 'Parrot'])
    >>> s.groupby(level=0).is_monotonic_decreasing
    Falcon     True
    Parrot    False
    dtype: bool
    

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