split data from workspace

hi everyone, i have MINIST file, it includes 28x28x60000 data, because it is too large, so it couldnot show, so now i want to use 500 data of its, it means 28x28x500, how can i do it, can you help me? thank you

Answer 1

[KL]

I think Stephen has answered it here.

https://de.mathworks.com/matlabcentral/answers/303817-how-to-split-a-3d-matrix-into-sub-3d-matrices

I would imagine something like

A = zeros(28,28,60000);
D = 500*ones(1,120);
C = mat2cell(A,28,28,D);

[nguyen tien]

sorry, i dont understand what is D, what is 120 mean

[KL]

D is how you want to split up your matrix. Here you want to split 60000 into 120 sub matrices of 500 each. That's what I understood from your question.