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"""!
@brief Examples of usage and demonstration of abilities of G-Means algorithm in cluster analysis.
@authors Andrei Novikov (pyclustering@yandex.ru)
@date 2014-2020
@copyright BSD-3-Clause
"""
from pyclustering.samples.definitions import SIMPLE_SAMPLES, FCPS_SAMPLES
from pyclustering.cluster import cluster_visualizer
from pyclustering.cluster.gmeans import gmeans
from pyclustering.utils import read_sample
def template_clustering(sample_path, k_init=1, ccore=True, **kwargs):
sample = read_sample(sample_path)
gmeans_instance = gmeans(sample, k_init, ccore, repeat=5).process()
clusters = gmeans_instance.get_clusters()
centers = gmeans_instance.get_centers()
visualize = kwargs.get('visualize', True)
if visualize:
visualizer = cluster_visualizer()
visualizer.append_clusters(clusters, sample)
visualizer.append_cluster(centers, None, marker='*', markersize=10)
visualizer.show()
return sample, clusters
def cluster_sample1():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE1)
def cluster_sample2():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE2)
def cluster_sample3():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE3)
def cluster_sample4():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE4)
def cluster_sample5():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE5)
def cluster_sample6():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE6)
def cluster_sample7():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE7)
def cluster_sample8():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE8)
def cluster_sample9():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE9)
def cluster_sample10():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE10)
def cluster_sample11():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE11)
def cluster_sample12():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE12)
def cluster_sample13():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE13)
def cluster_sample14():
template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE14)
def cluster_elongate():
template_clustering(SIMPLE_SAMPLES.SAMPLE_ELONGATE)
def cluster_lsun():
template_clustering(FCPS_SAMPLES.SAMPLE_LSUN)
def cluster_tetra():
template_clustering(FCPS_SAMPLES.SAMPLE_TETRA)
def cluster_hepta():
template_clustering(FCPS_SAMPLES.SAMPLE_HEPTA)
def cluster_two_diamonds():
template_clustering(FCPS_SAMPLES.SAMPLE_TWO_DIAMONDS)
def cluster_chainlink():
template_clustering(FCPS_SAMPLES.SAMPLE_CHAINLINK)
def cluster_wingnut():
template_clustering(FCPS_SAMPLES.SAMPLE_WING_NUT)
def cluster_atom():
template_clustering(FCPS_SAMPLES.SAMPLE_ATOM)
def cluster_engytime():
template_clustering(FCPS_SAMPLES.SAMPLE_ENGY_TIME)
def display_simple_clustering_results():
(simple1, simple1_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, visualize=False)
(simple2, simple2_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, visualize=False)
(simple3, simple3_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE3, visualize=False)
(simple4, simple4_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE4, visualize=False)
(simple5, simple5_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE5, visualize=False)
(simple6, simple6_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE6, visualize=False)
(simple7, simple7_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE7, visualize=False)
(simple8, simple8_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE8, visualize=False)
(simple9, simple9_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE9, visualize=False)
visualizer = cluster_visualizer(9, 3)
visualizer.append_clusters(simple1_clusters, simple1, 0, markersize=3)
visualizer.append_clusters(simple2_clusters, simple2, 1, markersize=3)
visualizer.append_clusters(simple3_clusters, simple3, 2, markersize=3)
visualizer.append_clusters(simple4_clusters, simple4, 3, markersize=3)
visualizer.append_clusters(simple5_clusters, simple5, 4, markersize=3)
visualizer.append_clusters(simple6_clusters, simple6, 5, markersize=6)
visualizer.append_clusters(simple7_clusters, simple7, 6, markersize=6)
visualizer.append_clusters(simple8_clusters, simple8, 7, markersize=6)
visualizer.append_clusters(simple9_clusters, simple9, 8, markersize=6)
visualizer.show()
def display_fcps_clustering_results():
(simple3, simple3_clusters) = template_clustering(SIMPLE_SAMPLES.SAMPLE_SIMPLE3, visualize=False)
(lsun, lsun_clusters) = template_clustering(FCPS_SAMPLES.SAMPLE_LSUN, visualize=False)
(target, target_clusters) = template_clustering(FCPS_SAMPLES.SAMPLE_TARGET, visualize=False)
(two_diamonds, two_diamonds_clusters) = template_clustering(FCPS_SAMPLES.SAMPLE_TWO_DIAMONDS, visualize=False)
(wing_nut, wing_nut_clusters) = template_clustering(FCPS_SAMPLES.SAMPLE_WING_NUT, visualize=False)
(chainlink, chainlink_clusters) = template_clustering(FCPS_SAMPLES.SAMPLE_CHAINLINK, visualize=False)
(hepta, hepta_clusters) = template_clustering(FCPS_SAMPLES.SAMPLE_HEPTA, visualize=False)
(tetra, tetra_clusters) = template_clustering(FCPS_SAMPLES.SAMPLE_TETRA, visualize=False)
(atom, atom_clusters) = template_clustering(FCPS_SAMPLES.SAMPLE_ATOM, visualize=False)
visualizer = cluster_visualizer(9, 3)
visualizer.append_clusters(simple3_clusters, simple3, 0, markersize=3)
visualizer.append_clusters(lsun_clusters, lsun, 1, markersize=3)
visualizer.append_clusters(target_clusters, target, 2, markersize=3)
visualizer.append_clusters(two_diamonds_clusters, two_diamonds, 3, markersize=3)
visualizer.append_clusters(wing_nut_clusters, wing_nut, 4, markersize=3)
visualizer.append_clusters(chainlink_clusters, chainlink, 5, markersize=6)
visualizer.append_clusters(hepta_clusters, hepta, 6, markersize=6)
visualizer.append_clusters(tetra_clusters, tetra, 7, markersize=6)
visualizer.append_clusters(atom_clusters, atom, 8, markersize=6)
visualizer.show()
cluster_sample1()
cluster_sample2()
cluster_sample3()
cluster_sample4()
cluster_sample5()
cluster_sample6()
cluster_sample7()
cluster_sample8()
cluster_sample9()
cluster_sample10()
cluster_sample11()
cluster_sample12()
cluster_sample13()
cluster_sample14()
cluster_elongate()
cluster_lsun()
cluster_tetra()
cluster_hepta()
cluster_two_diamonds()
cluster_chainlink()
cluster_wingnut()
cluster_atom()
cluster_engytime()
# display_simple_clustering_results()
# display_fcps_clustering_results()
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