如果要查找列表中每个元素的出现,可以使用
Counterfrom的模块
collections:-
>>> x = ['a','a','b','c','c','d']>>> from collections import Counter>>> count = Counter(x)>>> countCounter({'a': 2, 'c': 2, 'b': 1, 'd': 1})>>> count.most_common()[('a', 2), ('c', 2), ('b', 1), ('d', 1)]因此,前两个元素在您的列表中最常见。
>>> count.most_common()[0]('a', 2)>>> count.most_common()[1]('c', 2)或者,您还传递参数来
most_common()指定所需的
most-common元素数:-
>>> count.most_common(2)[('a', 2), ('c', 2)]更新:-
您也可以先找出
max计数,然后再找到具有该值的元素总数,然后可以将其用作参数
most_common():-
>>> freq_list = count.values()>>> freq_list[2, 2, 1, 1]>>> max_cnt = max(freq_list)>>> total = freq_list.count(max_cnt)>>> most_common = count.most_common(total)[('a', 2), ('c', 2)]>>> [elem[0] for elem in most_common]['a', 'c']


