Python - 在 Pandas 索引中显示条目为 NA 的内容


若要显示 Pandas 索引中哪些条目为 NA,请在 Pandas 中使用 index.isna()。首先,导入所需的库 -

import pandas as pd
import numpy as np

创建带有某些 NaN 值的 Pandas 索引 -

index = pd.Index([5, 65, np.nan, 17, 75, np.nan])

显示 Pandas 索引 -

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

显示 Pandas 索引中哪些条目为 NA。对于 NA 条目返回 True -

print("\nCheck which entries are NA...\n", index.isna())

示例

以下是代码 -

import pandas as pd
import numpy as np

# Creating Pandas index with some NaN values
index = pd.Index([5, 65, np.nan, 17, 75, 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)

# Show which entries in a Pandas index are NA
# Return True for NA entries
print("\nCheck which entries are NA...\n", index.isna())

输出

将生成以下输出 -

Pandas Index...
Float64Index([5.0, 65.0, nan, 17.0, 75.0, nan], dtype='float64')

Number of elements in the index...
6

The dtype object...
float64

Check which entries are NA...
[False False True False False True]

更新于: 13-Oct-2021

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