MATLAB: Rearrange any matrix Randomly with a specific sequence

Question

Hello,

I have a Matrix A like this

A=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20]'

I want to redistribute the matrix but I want to preserve a specifc sequence which is 5 here.

I mean I need a way to redistribute each five element randomly and assign them to a new matrix

for example:

the matrix B will be like this:

B=[6 7 8 9 10 11 12 13 14 15]'

the matrix C will be like this:

C=[ 1 2 3 4 5 16 17 18 19 20]'

Is that possible in MATLAB ?

Thanks,

Answer 1

Here is an example that you can refer

a = 1:20;
b = randperm(4);
n = length(b);
for i = 1:n
c(5*(i-1)+1:5*i) = a(5*(b(i)-1)+1:5*b(i));
end