hourly mean - why do I get the following error

Hi,

I want to perform the hourly mean of my data time series. However whenever I try, and following the matlab example, I got the following error

Error using timetable/retime (line 139)
Applying the function 'mean' to the 1st group in the variable 'Temp' generated the following error:

Matrix dimensions must agree.

When I then tried the example provided by Matlab, I got the same error;

>> Time = [minutes(0):minutes(15):minutes(105)]';
Temp = [98;97.5;97.9;98.1;97.9;98;98.3;97.8];
Pulse = [80;75;73;68;69;65;72;71];
TT = timetable(Time,Temp,Pulse)

TT =

  8×2 timetable

     Time      Temp    Pulse
    _______    ____    _____

    0 min        98     80  
    15 min     97.5     75  
    30 min     97.9     73  
    45 min     98.1     68  
    60 min     97.9     69  
    75 min       98     65  
    90 min     98.3     72  
    105 min    97.8     71  

>> TT2 = retime(TT,'hourly','mean')
Error using timetable/retime (line 139)
Applying the function 'mean' to the 1st group in the variable 'Temp' generated the following error:

Matrix dimensions must agree.

can you tell me why do I get such error?? thanks so much in advance

Answer 1

[Star Strider]

The problem may be that you’re running your code in the Command Window.

When I run it in a script, it runs without error and produces:

TT2 =

  2×2 timetable

     Time      Temp     Pulse
    ______    ______    _____

    0 min     97.875       74
    60 min        98    69.25

Run it in a script and see if you get the same error. I would be surprised if you would.

[Star Strider]

windyana07’s Answer mved here:

it doesnt for me... and I get the following issue...

Warning: A value of class "matlab.internal.editor.eval.TempFolder" was indexed with no
subscripts specified. Currently the result of this operation is the indexed value
itself, but in a future release, it will be an error. 

[Star Strider]

I have no idea what is throwing that error.

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