func (this *Stream) GetCentroids() [][]float64 {
if this.centroids == nil {
this.Run()
var centroids [][]float64
for _, cent := range this.centroidCounter.GetTop() {
centroids = append(centroids, cent.Centroid())
}
this.centroids = defaults.NewKMeansStream(this.rphashObject.GetK(), centroids, this.centroidCounter.GetCounts()).GetCentroids()
}
return this.centroids
}
func (this *Stream) GetCentroidsOfflineStep() [][]float64 {
var centroids [][]float64
var counts []int64
for i := 0; i < len(this.centroidCounter.GetTop()); i++ {
centroids = append(centroids, this.centroidCounter.GetTop()[i].Centroid())
counts = append(counts, this.centroidCounter.GetCounts()[i])
}
this.centroids = defaults.NewKMeansStream(this.rphashObject.GetK(), centroids, counts).GetCentroids()
count := int((utils.Max(counts) + utils.Min(counts)) / 2)
counts = []int64{}
for i := 0; i < this.rphashObject.GetK(); i++ {
counts = append(counts, int64(count))
}
this.counts = counts
return this.centroids
}
