How could i convert timestamp to nanosecond and what would be the way to get data in nanoseconds for given period?

Question

Mantas Vaitonis 2018-11-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/428720-how-could-i-convert-timestamp-to-nanosecond-and-what-would-be-the-way-to-get-data-in-nanoseconds-for

回答： Steven Lord 2018-11-8

Hello, Maybe someone could bring me on the right track. How could I convert the given time stamp to nanoseconds?

20180429,14:00:26.525162436,898,23252,ESM8,ES,ES,A
20180429,14:00:26.527757600,2899,7594,ESM8-ESH9,ES,ES,A
20180429,14:00:26.530015551,908,36759,ESM8-ESU8,ES,ES,A
20180429,14:00:26.530772312,910,1691,ESM8-ESZ8,ES,ES,A
20180429,14:00:26.531110319,911,736,ESM9,ES,ES,A

And what would be the way to get timestamps in nanosecond between period from 20180429 14:00:00.000000000 till 2018042914:00:00.000000000. It is needed that I could make comparisons between time and the given data like in example.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Steven Lord 2018-11-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/428720-how-could-i-convert-timestamp-to-nanosecond-and-what-would-be-the-way-to-get-data-in-nanoseconds-for#answer_345857

在 MATLAB Online 中打开

Call readtable. Reassemble the date and time string into one block of text then call datetime to convert that text representation into a datetime array.

t = readtable('answer428720.csv')
t.str = t.Var1 + " " + string(t.Var2)
fmt = 'yyyyMMdd HH:mm:ss.SSSSSSSSS';
t.timestamp = datetime(t.str, 'InputFormat', fmt, 'Format', fmt)