我有一个巨大的数据框,看起来像这样:
Insider Trading Relationship Date \
SEC Form 4
Nov 16 04:06 PM Silverman Gene Director Nov 14
Oct 27 07:00 AM RAKOLTA JOHN JR Director Oct 26
Nov 16 04:09 PM LEIGHTON F THOMSON Chief Executive Officer Nov 15
Nov 02 04:20 PM Blumofe Robert EVP Platform Nov 01
Oct 28 04:03 PM MCCONNELL RICK M President Prods & Development Oct 28
我试图通过此代码将索引dtype更改为日期时间dtype
pd.to_datetime(df2.index, format = '%b %d %I:%M %p')
但是它产生了错误:
Traceback (most recent call last):
File "<pyshell#126>", line 1, in <module>
pd.to_datetime(df2.index, format = '%b %d %I:%M %p')
File "C:\Python27\lib\site-packages\pandas\util\decorators.py", line 91, in wrapper
return func(*args, **kwargs)
File "C:\Python27\lib\site-packages\pandas\tseries\tools.py", line 420, in to_datetime
return _convert_listlike(arg, box, format, name=arg.name)
File "C:\Python27\lib\site-packages\pandas\tseries\tools.py", line 407, in _convert_listlike
raise e
有没有办法可以找到错误发生位置的索引?
我似乎可以将errors
设置为coerce
,这只会返回Nan
作为日期,但我想避免这种情况。
谢谢!
答案 0 :(得分:1)
你是对的,只需完成逻辑。设置为强制并过滤索引以对所有值isnull()以查找所有不正确的索引。