如何使用索引遍历熊猫多索引数据框

一种简单的方法是对索引的第一级进行分组-遍历groupby对象将返回组密钥和包含每个组的子帧。

In [136]: for date, new_df in df.groupby(level=0):     ...:     print(new_df)     ...:   observation1  observation2date       Time         2012-11-02 9:15:00     79.3736682249:16:00    130.841316477         observation1  observation2date       Time         2012-11-03 9:15:00     45.3128148359:16:00    123.7769466239:17:00    153.7664606249:18:00    463.2769466269:19:00    663.1769346229:20:00    763.773330621         observation1  observation2date       Time         2012-11-04 9:15:00    115.4494371229:16:00    123.7769465559:17:00    153.7664603449:18:00    463.276946212