【发布时间】:2016-07-15 08:53:53
【问题描述】:
我正在使用 k-means 算法进行聚类,但我不确定如何根据结果确定最佳 k 值。 例如,我在 k=10 的数据集上应用了 k-means:
kMeans
======
Number of iterations: 16
Within cluster sum of squared errors: 38.47923197081721
Missing values globally replaced with mean/mode
Cluster centroids:
Cluster#
Attribute Full Data 0 1 2 3 4 5 6 7 8 9
(214) (16) (9) (13) (23) (46) (12) (11) (40) (15) (29)
==============================================================================================================================================================================================================================================================
RI 1.5184 1.5181 1.5175 1.5189 1.5178 1.5172 1.519 1.5255 1.5175 1.5222 1.5171
Na 13.4079 12.9988 14.6467 12.8277 13.2148 13.1896 13.63 12.6318 13.0518 13.9107 14.4421
Mg 2.6845 3.4894 1.3056 0.7738 3.4261 3.4987 3.4917 0.2145 3.4958 3.8273 0.5383
Al 1.4449 1.1844 1.3667 2.0338 1.3552 1.4898 1.3308 1.1891 1.2617 0.716 2.1228
Si 72.6509 72.785 73.2067 72.3662 72.6526 72.6989 72.07 72.0709 72.9532 71.7467 72.9659
K 0.4971 0.4794 0 1.47 0.527 0.59 0.4108 0.2345 0.547 0.1007 0.3252
Ca 8.957 8.8069 9.3567 10.1238 8.5648 8.3041 8.87 13.1291 8.5035 9.5887 8.4914
Ba 0.175 0.015 0 0.1877 0.023 0.003 0.0667 0.2864 0 0 1.04
Fe 0.057 0.2238 0 0.0608 0.2013 0.0104 0.0167 0.1109 0.011 0.0313 0.0134
Type build wind non-float build wind float tableware containers build wind non-float build wind non-float build wind float build wind non-float build wind float build wind float headlamps
【问题讨论】:
标签: cluster-analysis weka k-means