how to do running mean?

Hi all,

I have a 3d matrix with a dimension of 21*41*273, for which I want to do the running mean over the third dimension (273 days) for every 4 days.

Any help would be appreciated.

Answer 1

[Ameer Hamza]

Try something like this

M = rand(21, 41, 273);
M_new = movmean(M, [0 3], 3, 'Endpoints', 'discard');
M_new = M_new(:,:,1:4:end);

[Lilya]

My apprecited. Solved!

[Ameer Hamza]

I am glad to be of help!

[Lilya]

Hi Sir Ameer, I have a small question here in this line:

M_new = movmean(M, [0 3], 3, 'Endpoints', 'discard');

What does the [0 3] refer to? I've checked it and it seems that it takes the data from 0 to 3. Am I understand it correctly?

also the ,3, in the line is it for 4 elements mean?

Thanks

[Ameer Hamza]

Yes, It means that it takes data from the current value and the next three values.

[Lilya]

Thank you!