Python Pandas - 返回索引是否为单调递减(仅相等或递减)值


如要返回索引是否为单调递减(仅相等或递减)的值,请使用 index.is_monotonic_decreasing 属性。

首先,导入所需的库 −

import pandas as pd

创建索引 −

index = pd.Index([50, 40, 30, 30, 30])

显示索引 −

print("Pandas Index...\n",index)

检查索引是否单调递减 −

print("\nIs the Pandas index monotonic decreasing?\n",index.is_monotonic_decreasing)

示例

代码如下 −

Open Compiler
import pandas as pd # Creating the index index = pd.Index([50, 40, 30, 30, 30]) # Display the index print("Pandas Index...\n",index) # Return an array representing the data in the Index print("\nArray...\n",index.values) # Check if the index monotonic decreasing print("\nIs the Pandas index monotonic decreasing?\n",index.is_monotonic_decreasing)

输出

这将生成以下代码 −

Pandas Index...
Int64Index([50, 40, 30, 30, 30], dtype='int64')

Array...
[50 40 30 30 30]

Is the Pandas index monotonic decreasing?
True

更新于: 13-10-2021

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