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Table 2 Silhouette index values for clustering solutions produced by PAM with different values of K

From: Unsupervised gene selection using biological knowledge : application in sample clustering

Data set K Silho Eucli-PAM Silho City-PAM Silho Cosine-PAM
Yeast 5 0.3792 0.367 0.381
  10 0.4531 0.452 0.442
  20 0.4415 0.437 0.435
  30 0.4075 0.411 0.426
  40 0.40 0.421 0.423
  50 0.397 0.432 0.419
Multiple tissues 5 0.354 0.361 0.359
  10 0.383 0.372 0.368
  20 0.394 0.379 0.382
  30 0.406 0.394 0.392
  40 0.4299 0.419 0.404
  50 0.429 0.402 0.418
  60 0.415 0.398 0.416
  70 0.414 0.391 0.409
  1. The data in boldface represents optimal value of ‘K’ i.e. dimension of gene space corresponding to optimal Silhouette index for all of three distance based PAM versions