Table 1.

Confusion matrix of subgroup designations by unsupervised hierarchic clustering and the PAM model in the training set

	Unsupervised hierarchic clustering group designation
PAM designation	G1	G2	G3	G4	G5	G6	G7	Class error rate
PR	29	0	0	0	0	0	0	0
LB	1	28	0	2	0	0	0	0.097
MS	0	0	44	0	0	0	0	0
HY	0	0	0	66	0	0	0	0
CD-1	0	0	0	1	20	1	0	0.091
CD-2	0	0	0	0	0	43	0	0
MF	1	0	0	0	0	0	20	0.048