how to take mean of every second data in a minute and an hourly?

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Vishnu Dhakad 2019-6-19

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评论： Vishnu Dhakad 2019-6-27

采纳的回答： Walter Roberson

A.mat
B.mat

I have data every second like

A = 16:22:54

16:22:55

16:22:56

16:22:57

.........

B = 91.964

92.384

81.198

NAN

82.222

.........

I want to make a new matrix which has every minute mean data.

please find the attached files. (Note: Time is in numeric formate)

Thank you

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Walter Roberson 2019-6-19

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We recommend creating timetable() and using the retime() function.

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Vishnu Dhakad 2019-6-19

Thank you Roberson

Vishnu Dhakad 2019-6-20

I want to calculate std also.

using retime function I did not get.

can you help me?

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Walter Roberson 2019-6-20

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在 MATLAB Online 中打开

TT2 = retime(TT1, 'minute', @std);

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Steven Lord 2019-6-20

在 MATLAB Online 中打开

What's the standard deviation of an array with no elements?

>> std([])
ans =
   NaN

If any of the minute bins are empty, the standard deviation of the data in that bin should be NaN.

Vishnu Dhakad 2019-6-27

Thanks

I got it.

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