要按整数位置选择行,请使用该iloc()函数。提及要选择的行的索引号。
创建一个数据帧 -
dataFrame = pd.DataFrame([[10, 15], [20, 25], [30, 35]],index=['x', 'y', 'z'],columns=['a', 'b'])
使用整数位置选择行iloc()-
dataFrame.iloc[1]
以下是代码 -
import pandas as pd # Create DataFrame dataFrame = pd.DataFrame([[10, 15], [20, 25], [30, 35]],index=['x', 'y', 'z'],columns=['a', 'b']) # DataFrame print"DataFrame...\n",dataFrame # select rows with loc print"\nSelect rows by passing label..." print(dataFrame.loc['z']) # select rows with integer location using iloc print"\nSelect rows by passing integer location..." print(dataFrame.iloc[1])输出结果
这将产生以下输出 -
DataFrame... a b x 10 15 y 20 25 z 30 35 Select rows by passing label... a 30 b 35 Name: z, dtype: int64 Select rows by passing integer location... a 20 b 25 Name: y, dtype: int64