how to extract the data for specific interval?

I have a datasets of time and value with time interval 0.1 sec. But, I want to extract the value and corresponding time for 0.5 sec from that. Please provide me any suggestion. Thanks.

Answer 1

[Star Strider]

I am not exactly certain what the desired result is, however the retime funciton will likely produce it, regardless.

Assuming that is to re-sample the table from 0.1 second resolution to 0.5 second resolution,

T1 = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/797754/Book2.xlsx', 'VariableNamingRule','preserve')

T1 = 11×2 table
     time      data2 
    ______    _______

      9334    0.48445
    9334.1    0.48506
    9334.2    0.48386
    9334.3    0.48294
    9334.4    0.48416
    9334.5    0.48688
    9334.6    0.48765
    9334.7    0.49532
    9334.8        0.5
    9334.9    0.50005
      9335     0.5001

T1.time = seconds(T1.time);                                     % Convert 'time' From Numeric To A 'duration' Array
TT1 = table2timetable(T1)

TT1 = 11×1 timetable
       time        data2 
    __________    _______

    9334 sec      0.48445
    9334.1 sec    0.48506
    9334.2 sec    0.48386
    9334.3 sec    0.48294
    9334.4 sec    0.48416
    9334.5 sec    0.48688
    9334.6 sec    0.48765
    9334.7 sec    0.49532
    9334.8 sec        0.5
    9334.9 sec    0.50005
    9335 sec       0.5001

TT1 = retime(TT1, 'regular','linear', 'Timestep',seconds(0.5))

TT1 = 3×1 timetable
       time        data2 
    __________    _______

    9334 sec      0.48445
    9334.5 sec    0.48688
    9335 sec       0.5001

The interpolation method is required in the event that there are missing times. It does not affect values that already exist at the chosen times.

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[AS]

Thank you.

[Star Strider]

As always, my pleasure!

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