Python - 检查 Pandas 索引是否仅包含数字数据


若要检查 Pandas 索引是否仅包含数字数据,请使用 index.is_numeric() 方法。首先,导入所需的库 -

import pandas as pd
import numpy as np

创建包含整数、浮点数和 NaN 的 Pandas 索引

index = pd.Index([5, 10.2, 25, 50, 75.2, 100, np.nan])

显示 Pandas 索引 -

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

检查索引值是否仅包含数字数据。数字数据包含整数、浮点数和 NaN -

index.is_numeric()

示例

以下为代码 -

import pandas as pd
import numpy as np

# Creating Pandas index with integer, float and NaNs
index = pd.Index([5, 10.2, 25, 50, 75.2, 100, np.nan])

# Display the Pandas index
print("Pandas Index...\n",index)

# Return the number of elements in the Index
print("\nNumber of elements in the index...\n",index.size)

# Return the dtype of the data
print("\nThe dtype object...\n",index.dtype)

# Check whether index values has only numeric data.
# Numeric data includes integer, floats and NaNs
print("\nIndex values only consists of numeric data?\n",index.is_numeric())

输出

将产生以下输出 -

Pandas Index...
Float64Index([5.0, 10.2, 25.0, 50.0, 75.2, 100.0, nan], dtype='float64')

Number of elements in the index...
7

The dtype object...
float64

Index values only consists of numeric data?
True

更新于: 2021 年 10 月 13 日

502 次浏览

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