code: public void setInitialClusters(List<? extends Cluster<? extends MeanModel>> initialMeans) {
      double[][] vecs = new double[initialMeans.size()][];
      for(int i = 0; i < vecs.length; i++) {
        vecs[i] = initialMeans.get(i).getModel().getMean();
      }
      this.initialMeans = vecs;
    }
docs: Set the initial means.
  
  Important notice: Use with care - the means are <em>not copied</em>!
  
  @param initialMeans initial means.