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Pandas DataFrame mode() 方法

❮ DataFrame 参考


示例

返回每列的众数

import pandas as pd

data = [[1, 1, 2], [6, 4, 2], [4, 2, 1], [4, 2, 3]]

df = pd.DataFrame(data)

print(df.mode())
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定义和用法

mode() 方法返回每列的众数。

平均数、中位数和众数

  • 平均数 - 平均值
  • 中位数 - 中间值
  • 众数 - 最常出现的值

通过指定列轴 (axis='columns'), mode() 方法按列搜索并返回每的众数。


语法

dataframe.mode(axis, numeric_only, dropna, kwargs)

参数

axisnumeric_onlydropna 参数是 关键字参数

参数 描述
axis 0
1
'index'
'columns'
可选,检查哪个轴,默认为 0。
numeric_only None
True
False
可选。指定是否仅检查数值。默认为 None
dropna True
False
可选。指定是否删除 NULL 值。默认为 True

 返回值

包含众数的 DataFrame

此函数不会更改原始 DataFrame 对象。


❮ DataFrame 参考

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