help in multi dimensional array 3D

hi I'm trying to increase the third dimension in a three-dimensional matrix can you help me? Example a=(2,3,5) after iteration it must be a=(2,3,7) thanks

Answer 1

[Greg]

I assume that "a=(2,3,5)" means the corresponding length of each dimension of a is 2, 3 and 5.

Increasing variable size is rarely a good idea (there are plenty of articles on pre-allocation; I won't rehash).

a = zeros(2,3,7);

for ind3 = 1:7

a(:,:,ind3) = randi(10,2,3);

end

(But ALL of this trivial example can be done with "a = randi(10,2,3,7);")

If you really MUST dynamically allocate:

• a(:,:,end+1) = randi(10,2,3); ~OR~
• a = cat(3,a,randi(10,2,3));

[Kawther Alani]

thank you