Question

type(a) <class 'pandas.core.frame.DataFrame'>

当我尝试获取'2016-08-10 09:00:00'的下一个索引时，我得到了这个结果。我只是不知道为什么。我想我已经定义了方法＆＃39;回填＆＃39;因此结果应该是唯一的，并且数据框确实包含'2016-08-10 09:00:01'和'2016-08-10 09:00:02'等索引。此网站可能会有所帮助。 http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Index.get_loc.html

a.index.get_loc('2016-08-10 09:00:00','backfill')

 Traceback (most recent call last):   File "<pyshell#49>", line 1, in
 <module>
     a.index.get_loc('2016-08-10 09:00:00','backfill')   File "C:\Python27\lib\site-packages\pandas\tseries\index.py", line 1431, in
 get_loc
     return Index.get_loc(self, key, method, tolerance)   File "C:\Python27\lib\site-packages\pandas\indexes\base.py", line 1949, in
 get_loc
     indexer = self.get_indexer([key], method=method, tolerance=tolerance)   File
 "C:\Python27\lib\site-packages\pandas\indexes\base.py", line 2079, in
 get_indexer
     tolerance=tolerance)   File "C:\Python27\lib\site-packages\pandas\indexes\base.py", line 2082, in
 get_indexer
     raise InvalidIndexError('Reindexing only valid with uniquely' InvalidIndexError: Reindexing only valid with uniquely valued Index
 objects

如何获取pandas中特定索引的下一个索引？

0 个答案: