对三个超市销量、品牌数、均价聚类

K的选择

kmeans++ k=2Within Set Sum of Squared Errors=118.06743855554647
kmeans++ k=3Within Set Sum of Squared Errors=73.04285624370425
kmeans++ k=4Within Set Sum of Squared Errors=56.56478515239625
kmeans++ k=5Within Set Sum of Squared Errors=44.65791290392439
kmeans++ k=6Within Set Sum of Squared Errors=35.41382245121643
kmeans++ k=7Within Set Sum of Squared Errors=30.293437831985983
kmeans++ k=8Within Set Sum of Squared Errors=25.541668130960122
kmeans++ k=9Within Set Sum of Squared Errors=19.59175152150647
kmeans++ k=10Within Set Sum of Squared Errors=17.56092492825524

kmeans k=2 Within Set Sum of Squared Errors=118.06743855554645
kmeans k=3 Within Set Sum of Squared Errors=73.04285624370425
kmeans k=4 Within Set Sum of Squared Errors=56.56478515239627
kmeans k=5 Within Set Sum of Squared Errors=43.849136729352566
kmeans k=6 Within Set Sum of Squared Errors=37.22913197448045
kmeans k=7 Within Set Sum of Squared Errors=32.748041628824865
kmeans k=8 Within Set Sum of Squared Errors=26.430459869826322
kmeans k=9 Within Set Sum of Squared Errors=28.479463256322624
kmeans k=10 Within Set Sum of Squared Errors=20.466265230384153

runs 和iterations

kmeans++ iter=1 Within Set Sum of Squared Errors=73.04285624370425
kmeans++ iter=5 Within Set Sum of Squared Errors=86.14564760182503
kmeans++ iter=6 Within Set Sum of Squared Errors=73.45613173335353
kmeans++ iter=7 Within Set Sum of Squared Errors=73.14503023264089
kmeans++ iter=8 Within Set Sum of Squared Errors=73.14503023264089
kmeans++ iter=9 Within Set Sum of Squared Errors=73.04285624370425
kmeans++ iter=10 Within Set Sum of Squared Errors=112.31892165218672
kmeans++ iter=20 Within Set Sum of Squared Errors=73.04285624370425
kmeans++ iter=30 Within Set Sum of Squared Errors=73.14503023264089
kmeans++ iter=40 Within Set Sum of Squared Errors=73.04285624370425
kmeans++ runs=1Within Set Sum of Squared Errors=73.14503023264089
kmeans                               runs=1Within Set Sum of Squared Errors=160.05936139534796
kmeans++ runs=5Within Set Sum of Squared Errors=73.04285624370425
kmeans                               runs=5Within Set Sum of Squared Errors=73.1068381262737
kmeans++ runs=6Within Set Sum of Squared Errors=73.04285624370425
kmeans                               runs=6Within Set Sum of Squared Errors=73.04285624370425
kmeans++ runs=7Within Set Sum of Squared Errors=73.04285624370425
kmeans                               runs=7Within Set Sum of Squared Errors=73.04285624370425
kmeans++ runs=8Within Set Sum of Squared Errors=73.04285624370425
kmeans                               runs=8Within Set Sum of Squared Errors=73.04285624370425
kmeans++ runs=9Within Set Sum of Squared Errors=73.04285624370425
kmeans                               runs=9Within Set Sum of Squared Errors=73.04285624370425
kmeans++ runs=10Within Set Sum of Squared Errors=73.04285624370425
kmeans                               runs=10Within Set Sum of Squared Errors=73.04285624370426
kmeans++ runs=20Within Set Sum of Squared Errors=73.04285624370426
kmeans                               runs=20Within Set Sum of Squared Errors=73.04285624370425
kmeans++ runs=30Within Set Sum of Squared Errors=73.04285624370426
kmeans                               runs=30Within Set Sum of Squared Errors=73.04285624370425
kmeans++ runs=40Within Set Sum of Squared Errors=73.04285624370425
kmeans                               runs=40Within Set Sum of Squared Errors=73.04285624370425