How can I find equal elements in a vector and place them at the end of the vector?

Hello, how can I find equal elements within a vector, and once I find these repeated elements, place them at the end? for example I have a vector.

vector = [10 22 22 22 30 45 45 20]

the result of the new vector would have to be

newvector = [10 30 20 22 22 22 45 45]

thanks in advance

Answer 1

[Chunru]

vector = [10 22 22 22 30 45 45 20]';
[GC,GR] = groupcounts(vector);
[GC, idx] = sort(GC);
GR=GR(idx);
newvec = [];
for i=1:length(GR)
    newvec =[newvec; vector(vector==GR(i))];
end
newvec

newvec = 8×1

10 20 30 45 45 22 22 22