File list (Check if you may need any files):
question two\affinity_calculating.m
............\calculate_affinity.m
............\calculate_angle.m
............\calculate_basis.m
............\check_basis.m
............\check_basis_method2.m
............\data1.xls
............\data2.xls
............\distance_calculating.m
............\inner_check_basis.m
............\local_similarity.m
............\question_2rd.m
............\Rij.m
............\SCC_test_question_two.m
............\spectral_clustering.m
............\structural_similarity.m
............\subspace_explanation.m
............\test_angle.m
............\try_kmeans.m
question two
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