How to store every matrix values that it's element changed in multiple loop

Hi there, it's been months trying to solved it. However, i got stuck. Suppose i got multiple loops

Z = rand(10,10);
for i=1:s
    for j=1:t
       for k=1:u
          x=1+(k-1).*u+(j-1).*t+(i-1).*s
          Z(Z<=y(x)&Z>y(x-1))=w(x);
       end
   end
end

I only got the last of Z. I would like to store the matrix Z(u,:,:). Thank in advance

[KSSV]

You have initialized Z already.....to what you want to save?

Answer 1

[Bob Thompson]

My best advice for saving the different values of Z is to add an extra dimension that ticks up each loop.

Z(Z<=y(x)&Z>y(x-1),k,j,i)=w(x);

This creates a fourth dimensional matrix where the rows change based on the logic, columns are accounted for with k loop, sheets with j loop, and "blocks" with i loop. This may not be the exact setup you're looking for, but it will save the results of Z each time the loop runs.

Alternatively, you can add a new variable that operates the same way, and saves the values of Z into it each loop. This does not have to happen within any particular loop. If you want to only change the sheet (suppose k and j do columns and rows) then you can set the storage variable within the i loop.

for i=1:s
 ...
 storage(:,:,i) = Z;
end