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
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