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Code Issues Projects Releases Packages Wiki Activity Actions 20

bpo-45851: Avoid full sort in statistics.multimode() (#29662)

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Suggested by Stefan Pochmann.
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Raymond Hettinger 2021-11-20 10:04:37 -06:00 • committed by GitHub
parent ef5305819f
commit 04e03f496c
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1 changed files with 5 additions and 3 deletions
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8
Lib/statistics.py
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@ -609,9 +609,11 @@ def multimode(data):
>>> multimode('')
[]
"""
counts = Counter(iter(data)).most_common()
maxcount, mode_items = next(groupby(counts, key=itemgetter(1)), (0, []))
return list(map(itemgetter(0), mode_items))
counts = Counter(iter(data))
if not counts:
return []
maxcount = max(counts.values())
return [value for value, count in counts.items() if count == maxcount]
# Notes on methods for computing quantiles