How to Shuffle some arrays of a matrix? (permutataion matrix considered)

for shuffling I have this codes so far

nVar=length(x);

cc=randsample(nVar,2);

c1=min(cc)

c2=max(cc)

now I need to shuffle arrays between C1 and C2 without having a number twice. each number has to appear only once

[Adam]

What do you expect to happen to the data outside of the C1 to C2 range? Are the arrays in question ordered so that data between C1 and C2 will always be contiguous and everything else in the array stays where it is?

The 'unique' function will get rid of duplicates for you.

[alexaa1989]

I need arrays between c1 and c2 shuffle randomly and appear once and everything outside C1:C2 stays the same as before

Answer 1

[Andrei Bobrov]

n = numel(x);
c = sort(randsample(nVar,2));
r = c(1)+1:c(2)-1;
z = x(r);
x(r) = z(randperm(diff(c)-1));

[alexaa1989]

Thank you so much it worked

[omar A.alghafoor]

how inverse shuffling for above code