要从索引返回标签,或者如果不存在,则返回前一个标签,请使用Pandas中的方法。index.asof()
首先,导入所需的库-
import pandas as pd创建熊猫索引-
index = pd.Index([10, 20, 30, 40, 50, 60, 70])显示熊猫指数-
print("Pandas Index...\n",index)从索引返回标签,如果不存在,则返回前一个-
print("\nGet the label from the index...\n",index.asof(43))以下是代码-
import pandas as pd #创建Pandas索引 index = pd.Index([10, 20, 30, 40, 50, 60, 70]) #显示Pandas索引 print("Pandas Index...\n",index) #返回索引中的元素数 print("\nNumber of elements in the index...\n",index.size) #从索引返回标签,如果不存在,则返回上一个标签 print("\nGet the label from the index...\n",index.asof(43))输出结果这将产生以下输出-
Pandas Index... Int64Index([10, 20, 30, 40, 50, 60, 70], dtype=int64) Number of elements in the index... 7 Get the label from the index... 40