I am using scipy.cluster.vq.kmeans2
which, by definition, initializes the K-means randomly (given the pre-defined initialization method - random, points).
Is there a way to make the initialization stable, ie, for the same initial centroids to obtain the same clustering results, but without using minit='matrix'
? I really don't know what the initial point are but I want them to be the same for all simulations runs (eg for reproducible outputs).
You can seed the default numpy random number generator, for example:
from numpy import random
random.seed(123)
as shown in the last example here (which seems to be applicable to kmeans2
as well).
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