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"""!
@brief Integration-tests for K-Means algorithm.
@authors Andrei Novikov (pyclustering@yandex.ru)
@date 2014-2020
@copyright BSD-3-Clause
"""
import unittest
import numpy
import matplotlib
matplotlib.use('Agg')
from pyclustering.cluster.tests.kmeans_templates import KmeansTestTemplates
from pyclustering.cluster.kmeans import kmeans
from pyclustering.samples.definitions import SIMPLE_SAMPLES
from pyclustering.core.tests import remove_library
from pyclustering.utils import read_sample
from pyclustering.utils.metric import distance_metric, type_metric
class KmeansIntegrationTest(unittest.TestCase):
def testClusterAllocationSampleSimple1ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True)
def testClusterOneAllocationSampleSimple1ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[1.0, 2.5]], [10], True)
def testClusterAllocationSampleSimple1EuclideanByCore(self):
metric = distance_metric(type_metric.EUCLIDEAN)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1EuclideanSquareByCore(self):
metric = distance_metric(type_metric.EUCLIDEAN_SQUARE)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1ManhattanByCore(self):
metric = distance_metric(type_metric.MANHATTAN)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1ChebyshevByCore(self):
metric = distance_metric(type_metric.CHEBYSHEV)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1Minkowski01ByCore(self):
metric = distance_metric(type_metric.MINKOWSKI, degree=2)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1Minkowski02ByCore(self):
metric = distance_metric(type_metric.MINKOWSKI, degree=4)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1UserDefinedByCore(self):
metric = distance_metric(type_metric.USER_DEFINED, func=distance_metric(type_metric.EUCLIDEAN))
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1UserDefinedNumPyByCore(self):
data = numpy.array(read_sample(SIMPLE_SAMPLES.SAMPLE_SIMPLE1))
centers = numpy.array([[3.7, 5.5], [6.7, 7.5]])
metric = distance_metric(type_metric.USER_DEFINED, func=distance_metric(type_metric.EUCLIDEAN))
KmeansTestTemplates.templateLengthProcessData(data, centers, [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1Canberra(self):
metric = distance_metric(type_metric.CANBERRA)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple1ChiSquare(self):
metric = distance_metric(type_metric.CHI_SQUARE)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, metric=metric)
def testClusterAllocationSampleSimple2ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [[3.5, 4.8], [6.9, 7], [7.5, 0.5]], [10, 5, 8], True)
def testClusterOneAllocationSampleSimple2ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [[0.5, 0.2]], [23], True)
def testClusterAllocationSampleSimple2UserDefinedByCore(self):
metric = distance_metric(type_metric.USER_DEFINED, func=distance_metric(type_metric.EUCLIDEAN))
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [[3.5, 4.8], [6.9, 7], [7.5, 0.5]], [10, 5, 8], True, metric=metric)
def testClusterAllocationSampleSimple2UserDefinedNumPyByCore(self):
data = numpy.array(read_sample(SIMPLE_SAMPLES.SAMPLE_SIMPLE2))
centers = numpy.array([[3.5, 4.8], [6.9, 7], [7.5, 0.5]])
metric = distance_metric(type_metric.USER_DEFINED, func=distance_metric(type_metric.EUCLIDEAN))
KmeansTestTemplates.templateLengthProcessData(data, centers, [10, 5, 8], True, metric=metric)
def testClusterAllocationSampleSimple3ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE3, [[0.2, 0.1], [4.0, 1.0], [2.0, 2.0], [2.3, 3.9]], [10, 10, 10, 30], True)
def testClusterOneAllocationSampleSimple3ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE3, [[0.2, 0.1]], [60], True)
def testClusterAllocationSampleSimple4ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE4, [[1.5, 0.0], [1.5, 2.0], [1.5, 4.0], [1.5, 6.0], [1.5, 8.0]], [15, 15, 15, 15, 15], True)
def testClusterOneAllocationSampleSimple4ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE4, [[2.0, 5.0]], [75], True)
def testClusterAllocationSampleSimple5ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE5, [[0.0, 1.0], [0.0, 0.0], [1.0, 1.0], [1.0, 0.0]], [15, 15, 15, 15], True)
def testClusterOneAllocationSampleSimple5ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE5, [[0.0, 0.0]], [60], True)
def testClusterAllocationSampleSimple5Canberra(self):
metric = distance_metric(type_metric.CANBERRA)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE5, [[0.0, 1.0], [0.0, 0.0], [1.0, 1.0], [1.0, 0.0]], [30, 30], True, metric=metric)
def testClusterAllocationSampleSimple5ChiSquare(self):
metric = distance_metric(type_metric.CHI_SQUARE)
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE5, [[3.4, 2.6], [3.4, -3.2], [-3.4, -3.4], [-3.1, 3.3]], [15, 15, 15, 15], True, metric=metric)
def testClusterOneDimensionSampleSimple7ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE7, [[-3.0], [2.0]], [10, 10], True)
def testClusterOneDimensionSampleSimple8ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE8, [[-4.0], [3.1], [6.1], [12.0]], [15, 30, 20, 80], True)
def testWrongNumberOfCentersSimpleSample1ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[2.0, 4.5], [3.3, 6.5], [5.0, 7.8]], None, True)
def testWrongNumberOfCentersSimpleSample2ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [[1.3, 1.5], [5.2, 8.5], [5.0, 7.8], [11.0, -3.0]], None, True)
def testTheSameData1ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE9, [ [4.0], [8.0] ], [10, 20], True)
def testTheSameData2ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE12, [ [1.0, 1.0], [2.5, 2.5], [4.0, 4.0] ], [5, 5, 5], True)
def testClusterAllocationOneDimensionDataByCore(self):
KmeansTestTemplates.templateClusterAllocationOneDimensionData(True)
def testEncoderProcedureSampleSimple4ByCore(self):
KmeansTestTemplates.templateEncoderProcedures(SIMPLE_SAMPLES.SAMPLE_SIMPLE4, [[1.5, 0.0], [1.5, 2.0], [1.5, 4.0], [1.5, 6.0], [1.5, 8.0]], 5, True)
def testCoreInterfaceIntInputData(self):
kmeans_instance = kmeans([ [1], [2], [3], [20], [21], [22] ], [ [2], [21] ], 0.025, True)
kmeans_instance.process()
assert len(kmeans_instance.get_clusters()) == 2
def testObserveSampleSimple1ByCore(self):
KmeansTestTemplates.templateCollectEvolution(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.5, 5.6], [6.8, 7.4]], [5, 5], True)
def testObserveSampleSimple1OneClusterByCore(self):
KmeansTestTemplates.templateCollectEvolution(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.3, 5.4]], [10], True)
def testObserveSampleSimple2ByCore(self):
KmeansTestTemplates.templateCollectEvolution(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [[3.4, 4.9], [6.8, 7.1], [7.6, 0.4]], [10, 5, 8], True)
def testItermax0ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [], True, itermax=0)
def testItermax1ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, itermax=1)
def testItermax10Simple01ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True, itermax=10)
def testItermax10Simple02ByCore(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [[3.5, 4.8], [6.9, 7], [7.5, 0.5]], [10, 5, 8], True, itermax=10)
def testShowResultsSampleSimple01(self):
KmeansTestTemplates.templateShowClusteringResultNoFailure(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.5, 5.6], [6.8, 7.4]], True)
def testShowResultsSampleSimple02(self):
KmeansTestTemplates.templateShowClusteringResultNoFailure(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [[3.4, 4.9], [6.8, 7.1], [7.6, 0.4]], True)
def testShowResultsOneDimensionalData(self):
KmeansTestTemplates.templateShowClusteringResultNoFailure(SIMPLE_SAMPLES.SAMPLE_SIMPLE8, [[-2.0], [3.0], [6.0], [12.0]], True)
def testShowResultsThreeDimensionalData(self):
KmeansTestTemplates.templateShowClusteringResultNoFailure(SIMPLE_SAMPLES.SAMPLE_SIMPLE11, [[1.0, 0.6, 0.8], [4.1, 4.2, 4.3]], True)
def testAnimateResultsSampleSimple01(self):
KmeansTestTemplates.templateAnimateClusteringResultNoFailure(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.5, 5.6], [6.8, 7.4]], True)
def testAnimateResultsSampleSimple02(self):
KmeansTestTemplates.templateAnimateClusteringResultNoFailure(SIMPLE_SAMPLES.SAMPLE_SIMPLE2, [[3.4, 4.9], [6.8, 7.1], [7.6, 0.4]], True)
def testAnimateResultsOneDimensionalData(self):
KmeansTestTemplates.templateAnimateClusteringResultNoFailure(SIMPLE_SAMPLES.SAMPLE_SIMPLE8, [[-2.0], [3.0], [6.0], [12.0]], True)
def testAnimateResultsThreeDimensionalData(self):
KmeansTestTemplates.templateAnimateClusteringResultNoFailure(SIMPLE_SAMPLES.SAMPLE_SIMPLE11, [[1.0, 0.6, 0.8], [4.1, 4.2, 4.3]], True)
@remove_library
def testProcessingWhenLibraryCoreCorrupted(self):
KmeansTestTemplates.templateLengthProcessData(SIMPLE_SAMPLES.SAMPLE_SIMPLE1, [[3.7, 5.5], [6.7, 7.5]], [5, 5], True)
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