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pandas.core.groupby.SeriesGroupBy.is_monotonic_decreasing

SeriesGroupBy.is_monotonic_decreasing

Return boolean if values in the object are monotonic_decreasing.

New in version 0.19.0.

Returns:
is_monotonic_decreasing : boolean

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https://pandas.pydata.org/pandas-docs/version/0.24.2/reference/api/pandas.core.groupby.SeriesGroupBy.is_monotonic_decreasing.html