Reducing number of elements.

I have a raw matrix (for example, size is 100 x 1).

I would like to calculate an average value in each 10 elements, then substitute this average value to new matrix.

Here, I dont want to use 'for loop' because actual raw data is very huge..

Do you have any idea to calculate the average value without for loop..

Thank you very mcuh,

Answer 1

[Stephen23]

V = rand(100,1)

V = 100×1

0.8711 0.0119 0.7122 0.0248 0.6226 0.2492 0.9730 0.5473 0.0675 0.2847

Z = mean(reshape(V,10,10),1).'

Z = 10×1

0.4364 0.5550 0.3497 0.7366 0.3949 0.4595 0.4442 0.5738 0.3501 0.3926

[大輝 渡辺]

Oh, Nice! Thank you very much!!