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datenum with time in time vector

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Rica
Rica 2012-10-30
Hi together!
I have a time vector: % code%%
t=[ '01:17:32'
'01:17:34'
'01:17:36'
'01:17:37'
'01:17:39'
'01:17:41'
'01:17:43'
'01:17:44'
'01:17:46'
'01:17:48'
'01:17:50'
'01:17:51'
'01:17:53'
'01:17:55'
'01:17:56'
'01:17:58'
'01:18:00'
'01:18:02'
'01:18:03'
'01:18:05'
'01:18:07'
'01:18:09'
'01:18:10'
'01:18:12'
'01:18:14'
'01:18:16'
'01:18:17'
'01:18:19'
'01:18:21'
'01:18:23'
'01:18:24'
'01:18:26'
'01:18:28'
'01:18:29'
'01:18:31']
%
end
i want to get the seriell number of this times with function DATENUM:
My code is like this:
formatIn='HH:MM:SS'
tt=datenum(t,formatIn)
i get the same seriell number. Why?
Thank you

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采纳的回答

José-Luis
José-Luis 2012-10-30
编辑：José-Luis 2012-10-30
I don't think you get the same number.
Try
diff(tt)
and you will see that they are different.
Also, use
format long
And look at your results again. The integral part is the day, which is going to be the same, the way you have your data.

更多回答（1 个）

Rica
Rica 2012-10-30
thnk you

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