单个变量的频率表

也许

.value_counts()

>>> import pandas>>> my_series = pandas.Series([1,2,2,3,3,3, "fred", 1.8, 1.8])>>> my_series0       11       22       23       34       35       36    fred7     1.88     1.8>>> counts = my_series.value_counts()>>> counts3       32       21.8     2fred    11       1>>> len(counts)5>>> sum(counts)9>>> counts["fred"]1>>> dict(counts){1.8: 2, 2: 2, 3: 3, 1: 1, 'fred': 1}