changing similar numbers in a raw

Dear all,

I have a raw with repeated numbers. I want to change them to different onse exactly like the randperm.

X=[1 2 2 2 3 2 4 2 2 2];

i want to make it

X=[1 2 4 3 7 5 8 6 10 9];

many thanks

[KALYAN ACHARJYA]

X=[1 2 2 2 3 2 4 2 2 2];

Desired result? Any issue?

X=randperm(length(X))

X = 1×10

8 5 1 9 6 4 2 3 7 10

Answer 1

[nadia nadi]

Thanks for replying, but i need to keep the numbers 1,3,4 without change their position.

Best

Answer 2

[Arif Hoq]

try this:

X=[1 2 2 2 3 2 4 2 2 2];
a=X(X==2);
b=randperm(length(a));
a=b;
X(X==2)=0;
X(X==0)=a

X = 1×10

1 5 6 2 3 7 4 1 4 3