Kmeans matlab “Empty cluster created at iteration 1” error

Question

I\'m using this script to cluster a set of 3D points using the kmeans matlab function but I always get this error \"Empty cluster created at iteration 1\". The script I\'m usin

Answer 1

If you are confident with your choice of "k=3", here is the code I wrote for not getting an empty cluster:

[IDX,C] = kmeans(XX,3,'distance','cosine','start','sample', 'emptyaction','singleton');

while length(unique(IDX))<3 ||  histc(histc(IDX,[1 2 3]),1)~=0
% i.e. while one of the clusters is empty -- or -- we have one or more clusters with only one member
[IDX,C] = kmeans(XX,3,'distance','cosine','start','sample', 'emptyaction','singleton');
end