c-mean clustering validity results N. Overall stability index S e=0.5 e=0.4 e=0.3 e=0.2 e=0.1 2 0.8212 0.8119 0.9553 0.8180 0.9699 3 0.8245 0.8496 0.8123 0.8355 0.9297 4 0.7994 0.8363 0.8506 0.8758 0.8879 5 0.7566 0.6933 0.7836 0.8156 0.8741 6 0.7486 0.6994 0.7006 0.8447 0.7920 7 0.7025 0.6991 0.7863 0.8112 0.7023 8 0.6508 0.7011 0.6477 0.7179 0.7436 9 0.5888 0.6679 0.7295 0.7188 0.6688 10 0.5996 0.5990 0.6486 0.6749 0.6727 20 0.5035 0.5478 0.5707 0.6155 0.7066 N. Cl. Stability index s e=0.5 e=0.4 e=0.3 e=0.2 e=0.1 2 1 0.9480 0.9320 0.9106 0.9947 0.9399 2 0.6943 0.6918 1.0000 0.6413 1.0000 3 1 0.8126 0.8106 0.6768 0.6923 0.9816 2 0.7117 0.7515 0.7903 0.8343 0.8110 3 0.9491 0.9867 0.9698 0.9798 0.9967 4 1 0.8075 0.8782 0.9039 0.9112 0.9416 2 0.4835 0.6190 0.7005 0.6924 0.7362 3 0.9066 0.8480 0.8503 0.8997 0.9446 4 1.0000 1.0000 0.9478 1.0000 0.9293 5 1 0.7870 0.7341 0.7772 0.9122 0.9221 2 0.4290 0.5719 0.5033 0.5750 0.6853 3 0.9381 0.6207 0.9789 0.7503 0.9570 4 0.6811 0.6032 0.7349 0.9435 0.8422 5 0.9478 0.9367 0.9239 0.8971 0.9637 6 1 0.7520 0.6173 0.7218 0.8321 0.5863 2 0.4611 0.5878 0.4680 0.6432 0.8741 3 0.8064 0.5226 0.6313 0.9248 0.7478 4 0.9068 0.6184 0.9249 0.9381 0.6365 5 0.6805 0.9550 0.5655 0.7470 0.9965 6 0.8846 0.8955 0.8918 0.9828 0.9107 7 1 0.4986 0.6694 0.6485 0.6744 0.5023 2 0.6541 0.4152 0.5102 0.5459 0.4291 3 0.4987 0.6717 0.8582 0.9175 0.4217 4 0.4931 0.7299 0.9086 0.9160 0.7406 5 0.9257 0.9478 0.7333 0.7581 0.8222 6 0.8475 0.5657 0.8449 0.8667 1.0000 7 1.0000 0.8938 1.0000 1.0000 1.0000 8 1 0.5611 0.4772 0.5400 0.5898 0.5923 2 0.5413 0.4058 0.3704 0.6972 0.4749 3 0.4277 0.5746 0.5146 0.4405 0.5768 4 0.5597 0.7338 0.3452 0.6406 0.8746 5 0.7253 0.8716 0.5440 0.8370 0.8139 6 0.9080 0.7074 1.0000 0.9478 0.9552 7 0.6475 0.8384 0.8677 0.7713 0.7298 8 0.8355 1.0000 1.0000 0.8191 0.9314 9 1 0.5097 0.4437 0.4224 0.6337 0.5058 2 0.4883 0.3838 0.4371 0.7038 0.4572 3 0.4070 0.4738 0.7123 0.4615 0.6620 4 0.4017 0.7207 0.8658 0.5546 0.4476 5 0.5829 0.8000 0.7315 0.7780 0.7712 6 0.5365 0.8030 0.6411 0.8540 0.4808 7 0.8750 0.9606 0.9333 0.9407 0.9843 8 0.6963 0.6365 0.8222 0.7480 0.7961 9 0.8018 0.7887 1.0000 0.7953 0.9142 10 1 0.6158 0.4554 0.4331 0.5345 0.4211 2 0.3530 0.5231 0.4612 0.5435 0.4957 3 0.4942 0.3782 0.3695 0.5403 0.4893 4 0.4896 0.4263 0.5011 0.4346 0.4496 5 0.6097 0.6417 0.7726 0.7059 0.8230 6 0.4928 0.8452 0.4410 0.7655 0.6987 7 0.6440 0.5385 0.8912 0.6442 0.7196 8 0.9229 0.7085 0.6961 0.9693 0.9133 9 0.7034 0.6507 0.9206 0.8383 0.8439 10 0.6702 0.8228 1.0000 0.7727 0.8725 20 1 0.4829 0.5319 0.3740 0.5758 0.5984 2 0.5188 0.3303 0.2974 0.6133 0.4851 3 0.2496 0.6481 0.2631 0.4219 0.4776 4 0.4194 0.3913 0.4098 0.3764 0.4945 5 0.4526 0.3222 0.4940 0.4480 0.7357 6 0.3594 0.3495 0.6440 0.5333 0.6850 7 0.3389 0.3958 0.4622 0.6108 0.4778 8 0.2654 0.3551 0.5644 0.6429 0.6172 9 0.5036 0.5333 0.5049 0.5546 0.5047 10 0.4545 0.4763 0.3770 0.8556 0.6833 11 0.5798 0.4111 0.5889 0.6651 0.5350 12 0.5933 0.5667 0.6593 0.9022 0.8333 13 0.7858 0.8250 0.4794 0.8311 0.9322 14 0.3822 0.7667 0.5077 0.4492 0.7833 15 0.6444 0.5175 0.0667 0.5679 0.6911 16 0.5778 0.4850 1.0000 0.7381 0.8679 17 0.4930 0.5774 1.0000 0.5200 1.0000 18 0.7578 0.8244 0.9822 0.7703 0.9857 19 0.5154 0.9556 0.8952 1.0000 0.9133 20 0.6956 0.6937 0.8444 0.2333 0.8306