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gh-121977: Add tips for handling unhashable data (#122075)

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Raymond Hettinger 2024-07-21 00:53:26 -05:00 committed by GitHub
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Doc/library/statistics.rst
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@ -485,6 +485,12 @@ However, for reading convenience, most of the examples show sorted sequences.
>>> mode(["red", "blue", "blue", "red", "green", "red", "red"]) >>> mode(["red", "blue", "blue", "red", "green", "red", "red"])
'red' 'red'
Only hashable inputs are supported. To handle type :class:`set`,
consider casting to :class:`frozenset`. To handle type :class:`list`,
consider casting to :class:`tuple`. For mixed or nested inputs, consider
using this slower quadratic algorithm that only depends on equality tests:
``max(data, key=data.count)``.
.. versionchanged:: 3.8 .. versionchanged:: 3.8
Now handles multimodal datasets by returning the first mode encountered. Now handles multimodal datasets by returning the first mode encountered.
Formerly, it raised :exc:`StatisticsError` when more than one mode was Formerly, it raised :exc:`StatisticsError` when more than one mode was