How to build random number every loop different?

hello guys

i have a problem when i develop this code when i want to do 400 round and every round i want to get unique random number for choosing cordinat in my project. can anyone help me, thank you

    %rnd is round when looping
    startx=[];
    starty=[];
    center=[];
    %rng('default');
    rng('shuffle');
    acak(:,rnd)=randi(n,8,1);
    for i=1:k
        startx(i)=x(acak(i,rnd));
        starty(i)=y(acak(i,rnd));
        center(i,1)=startx(i);
        center(i,2)=starty(i);
    end

velop rng in kmeans algorithm, i want to get random number

Answer 1

[Adam Danz]

It looks like you want random positive integers without repetition based on your use of randi.

p = randperm(n,k) where n is the maximum interger to choose from and k is the number of random values to pull. Obvious k cannot be greater than n.