Python Pandas - 返回一个新的索引,其中索引的元素不在其他中,并得到差异
要返回索引元素不在other中的新索引并获取差异,请使用Pandas中的index1.difference(index2)方法。
首先,导入所需的库-
import pandas as pd
创建两个Pandas索引-
index1 = pd.Index([10, 20, 30, 40, 50]) index2 = pd.Index([80, 40, 60, 20, 55])
显示Pandasindex1和index2
print("Pandas Index1...\n",index1) print("Pandas Index2...\n",index2)
获取两个索引的差异-
res = index1.difference(index2)
示例
以下是代码-
import pandas as pd #创建两个Pandas索引 index1 = pd.Index([10, 20, 30, 40, 50]) index2 = pd.Index([80, 40, 60, 20, 55]) #显示Pandasindex1和index2 print("Pandas Index1...\n",index1) print("Pandas Index2...\n",index2) #返回Index1和Index2中元素的数量 print("\nNumber of elements in index1...\n",index1.size) print("\nNumber of elements in index2...\n",index2.size) #获取两个索引的差值 res = index1.difference(index2) #两个索引的差异,即返回一个新索引,其中索引的元素不在其他索引中 print("\nDifference...\n",res)输出结果
这将产生以下输出-
Pandas Index1... Int64Index([10, 20, 30, 40, 50], dtype='int64') Pandas Index2... Int64Index([80, 40, 60, 20, 55], dtype='int64') Number of elements in index1... 5 Number of elements in index2... 5 Difference... Int64Index([10, 30, 50], dtype='int64')