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Pandas DataFrame pct_change() 方法

❮ DataFrame 参考


示例

查找当前行与上一行值之间的百分比差异

import pandas as pd

data = [[10, 18, 11], [20, 15, 8], [30, 20, 3]]

df = pd.DataFrame(data)

print(df.pct_change())
自己尝试 »

定义和用法

The pct_change() 方法返回一个 DataFrame,其中包含每一行与默认情况下上一行值之间的百分比差异。

可以使用 periods 参数指定要比较的行。


语法

dataframe.pct_change(periods, axis, fill_method, limit, freq, kwargs)

参数

The periodsfill_methodaxislimitfreq 参数是 关键字参数..

参数 描述
periods 数字 可选。指定要计算差异的行/列。默认值为 1,表示上一行/列。
axis 0
1
'index'
'columns'
可选,默认为 0,指定要检查差异的轴。
fill_method 字符串 可选,默认为 'pad'。指定如何处理 NULL 值。
limit None
数字
可选,默认为 None。指定在结束比较之前要填充多少个 NULL 值。
freq 日期
字符串
可选,指定用于日期时间值的增量。

 返回值

包含差异的 DataFrame 对象。


❮ DataFrame 参考

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