The following example shows how to implement a sliding window approach to initialize a large matrix.
The required matrix is a 5-D matrix which is 1000x6x4x3x6. We can initially initialize a 50x6x4x3x6 matrix and then slide along the 1st dimension to add the remaining 9950x6x4x3x6 elements
function sliding_matrix
clear
countMatrix = zeros(50, 6, 4, 3, 6); %initialize a small matrix
for t = 1 : 50
for bm =1 : 6 % 5 bm
for bw =1 : 4 % 4 bw
for lv = 1 : 3 % 5 lv
for ta=1 : 6 % 200 ta
countMatrix(t,bm,bw,lv,ta) = ceil(101*rand(1)); %initialze the values
end
end
end
end
end
%
% perform necessary operations on the matrix
%
for i = 1:9950 %slde the window 10 times
%call function to add new data
countMatrix = SlideMatrix(countMatrix, i);
%
% perform necessary operations on the matrix
%
end
end
function A = SlideMatrix(A, i)
A(1,:,:,:,:) = []; %Reduce the the first dimension by 1
for bm = 1:6
for bw = 1:4
for lv = 1:3
for ta = 1:6
A(50, bm, bw, lv, ta) = i; %add a new elements along the first dimension
i = i + 1;
end
end
end
end
end
