# File lib/ai4r/clusterers/single_linkage.rb, line 146 def merge_clusters(index_a, index_b, index_clusters) index_a, index_b = index_b, index_a if index_b > index_a new_index_cluster = index_clusters[index_a] + index_clusters[index_b] index_clusters.delete_at index_a index_clusters.delete_at index_b index_clusters << new_index_cluster return index_clusters end