Python Pandas - 将一系列索引选项附加在一起
要将一系列索引选项追加在一起,请使用 Pandas 中的 append() 方法。首先,导入所需的库 −
import pandas as pd
创建 Pandas 索引 −
index1 = pd.Index([10, 20, 30, 40, 50])
显示 Pandas 索引 −
print("Pandas Index...\n",index1)创建一个新索引进行追加 −
index2 = pd.Index([60, 70, 80])
追加新索引 −
print("\nAfter appending...\n",index1.append(index2))示例
以下为代码 −
import pandas as pd
# Creating Pandas index
index1 = pd.Index([10, 20, 30, 40, 50])
# Display the Pandas index
print("Pandas Index...\n",index1)
# Return the number of elements in the Index
print("\nNumber of elements in the index...\n",index1.size)
# create a new index to be appended
index2 = pd.Index([60, 70, 80])
# Append the new index
print("\nAfter appending...\n",index1.append(index2))输出
这将产生以下输出 −
Pandas Index... Int64Index([10, 20, 30, 40, 50], dtype='int64') Number of elements in the index... 5 After appending... Int64Index([10, 20, 30, 40, 50, 60, 70, 80], dtype='int64')
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