将datetime字符串转换为datetime(python) [英] Converting datetime string to datetime in numpy (python)
问题描述
我想转换
['17-10-2010 07:15:30','13 -05 -2011 08:20:35',15-01-2013 09:09:09]
进入 Numpy
datetime对象。
import numpy as np
[np.datetime64(x)for x in ['17 -10-2010 07 :15:30','13 -05-2011 08:20:35',15-01-2013 09:09:09]]
raise ValueError:无法将对象转换为NumPy datetime
。但是,以下作品正如我所想
[np.datetime64(x)for x in ['2010-10-17 07 :15:30','2011-05-13 08:20:35',2012-01-15 09:09:09]]
如何将我的数组转换为符合 Numpy
的 datetime64 $的格式c $ c>函数要求?
我正在使用Numpy版本1.7.0。在python 3.4
据我所知, np.datetime64
只适用于
c code code code code code code code code code code code code $ code> import pandas as pd
a = pd.to_datetime(['17-10-2010 07:15:30','13 -05-2011 08:20:35',15-01- 2013 09:09:09])
当然,您可以轻松转换回 numpy
:
np.array(a,dtype = np.datetime64)
I would like to convert
['17-10-2010 07:15:30', '13-05-2011 08:20:35', "15-01-2013 09:09:09"]
into a Numpy
datetime object.
import numpy as np
[np.datetime64(x) for x in ['17-10-2010 07:15:30', '13-05-2011 08:20:35', "15-01-2013 09:09:09"]]
raised ValueError: Could not convert object to NumPy datetime
. However, the following works as I intended
[np.datetime64(x) for x in ['2010-10-17 07:15:30', '2011-05-13 08:20:35', "2012-01-15 09:09:09"]]
How can I convert my array into a format that conforms with Numpy
's datetime64
function requirement?
I am using Numpy version 1.7.0. in python 3.4
So far as I can tell, np.datetime64
only works with
The to_datetime
function in pandas
seems to be more flexible:
import pandas as pd
a=pd.to_datetime(['17-10-2010 07:15:30', '13-05-2011 08:20:35', "15-01-2013 09:09:09"])
Of course you can easily convert back to numpy
:
np.array(a,dtype=np.datetime64)
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