Python Pandas - 構建兩個 Index 物件的交集


若要構建兩個 Index 物件的交集,請在 Pandas 中使用 index1.intersection(index2) 方法。首先,匯入所需庫 −

import pandas as pd

建立兩個 Pandas index −

index1 = pd.Index([10, 20, 30, 40, 50])
index2 = pd.Index([80, 65, 60, 70, 55])

顯示 Pandas index1 和 index2 −

print("Pandas Index1...\n",index1)
print("Pandas Index2...\n",index2)

執行交集 −

res = index1.intersection(index2)

示例

以下是程式碼 −

import pandas as pd

# Creating two Pandas index
index1 = pd.Index([10, 20, 30, 40, 50])
index2 = pd.Index([80, 65, 60, 70, 55])

# Display the Pandas index1 and index2
print("Pandas Index1...\n",index1)
print("Pandas Index2...\n",index2)

# Return the number of elements in Index1 and Index2
print("\nNumber of elements in index1...\n",index1.size)
print("\nNumber of elements in index2...\n",index2.size)

# Perform intersection
res = index1.intersection(index2)

# Intersection of both the indexes
print("\nThe index1 and index2 intersection...\n",res)

輸出

此操作將生成以下輸出 −

Pandas Index1...
Int64Index([10, 20, 30, 40, 50], dtype='int64')
Pandas Index2...
Int64Index([80, 65, 60, 70, 55], dtype='int64')

Number of elements in index1...
5

Number of elements in index2...
5

The index1 and index2 intersection...
Int64Index([], dtype='int64')

更新時間: 14-10-2021

158 次檢視

開啟您的 職業生涯

完成課程後獲得認證

開始
廣告