wehub-resource-sync
16 lines
321 B
Matlab
Executable File
16 lines
321 B
Matlab
Executable File
function mu = kseeds(X, k)
|
|
% Perform kmeans++ seeding
|
|
% Input:
|
|
% X: d x n data matrix
|
|
% k: number of seeds
|
|
% Output:
|
|
% mu: d x k seeds
|
|
% Written by Mo Chen (sth4nth@gmail.com).
|
|
n = size(X,2);
|
|
D = inf(1,n);
|
|
mu = X(:,ceil(n*rand));
|
|
for i = 2:k
|
|
D = min(D,sum((X-mu(:,i-1)).^2,1));
|
|
mu(:,i) = X(:,randp(D));
|
|
end
|