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法律學習Python——使用刪除多重索引元素的新建 Pandas 索引
要使用刪除多重索引元素的新建 Pandas 索引，請使用 index.delete() 方法。在其中設定多重索引元素。
首先，匯入所需的庫 −
import pandas as pd
建立索引 −
index = pd.Index([15, 25, 35, 45, 55, 75, 95])
顯示索引 −
print("Pandas Index...\n",index)刪除第 3 個位置（即索引 2）和第 5 個位置（即索引 4）的多重索引 −
print("\nRemaining Index after deleting multiple index elements...\n", index.delete([2, 4]))示例
以下是程式碼 −
import pandas as pd
# Creating the index
index = pd.Index([15, 25, 35, 45, 55, 75, 95])
# Display the 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 a tuple of the shape of the underlying data
print("\nA tuple of the shape of underlying data...\n",index.shape)
# get the bytes in the data
print("\nReturn the bytes...\n",index.nbytes)
# get the dimensions of the data
print("\nReturn the dimensions...\n",index.ndim)
# deleting multiple indexes at 3rd position i.e. index 2 and 5th position i.e. index 4
print("\nRemaining Index after deleting multiple index elements...\n", index.delete([2, 4]))輸出
這將生成以下程式碼 −
Pandas Index... Int64Index([15, 25, 35, 45, 55, 75, 95], dtype='int64') Number of elements in the index... 7 A tuple of the shape of underlying data... (7,) Return the bytes... 56 Return the dimensions... 1 Remaining Index after deleting multiple index elements... Int64Index([15, 25, 45, 75, 95], dtype='int64')
於更新:2021-10-13
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