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Pandas DataFrame round() 方法

❮ DataFrame 参考


示例

将 DataFrame 中的每个数字四舍五入到小数点后 1 位

import pandas as pd

data = [[1.1235, 1.9654, 2.6874], [6.5124, 4.2210, 2.2899]]

df = pd.DataFrame(data)

print(df.round(1))
自己尝试一下 »

定义和用法

round() 方法将 DataFrame 中的值四舍五入为指定小数位数的数字,默认为 0 位小数。


语法

dataframe.round(decimals, args, kwargs)

参数

参数 描述
decimals 可选,数字|字典|Series。默认为 0。指定小数位数。可以通过在字典中指定索引/标签作为键,或在 Series 中指定索引,为不同的列/行指定不同的数字。
args 可选。这些参数没有效果,但 NumPy 函数可能会接受它们。
kwargs 可选,关键字参数。这些参数没有效果,但 NumPy 函数可能会接受它们。

 返回值

具有四舍五入值的 DataFrame

此函数不会更改原始 DataFrame 对象。


❮ DataFrame 参考

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