Python Pandas - 刪除標籤的指定列表,製作新的索引
要刪除標籤的指定列表,製作新的索引,使用 index.drop() 方法。將其中 標籤列表 傳遞進去。
首先,匯入所需的庫:
import pandas as pd
建立索引:
index = pd.Index(['Car','Bike','Truck','Ship','Airplane'])
顯示索引:
print("Pandas Index...\n",index)傳遞包含要刪除的標籤的列表:
print("\nUpdated index after deleting labels...\n",index.drop(['Bike', 'Ship']))
示例
以下是程式碼:
import pandas as pd
# Creating the index
index = pd.Index(['Car','Bike','Truck','Ship','Airplane'])
# Display the index
print("Pandas Index...\n",index)
# Return the dtype of the data
print("\nThe dtype object...\n",index.dtype)
# Return a tuple of the shape of the underlying data
print("\nA tuple of the shape of underlying data...\n",index.shape)
# a list containing labels to be dropped are passed
print("\nUpdated index after deleting labels...\n",index.drop(['Bike', 'Ship']))輸出
這將生成以下程式碼:
Pandas Index... Index(['Car', 'Bike', 'Truck', 'Ship', 'Airplane'], dtype='object') The dtype object... object A tuple of the shape of underlying data... (5,) Updated index after deleting labels... Index(['Car', 'Truck', 'Airplane'], dtype='object')
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