Table 1.

Clustering Quality Results for the 452 Nontrivial Families

	(i, c)	i	c	r
(100,100)	340 (75%)	274 (61%)	229 (51%)	332 (73%)
(90,90)	369 (82%)	290 (64%)	256 (57%)	362 (80%)

The columns represent different clustering schemes — column labeled i refers to clustering using percentage identity alone, column labeled c refers to clustering using percentage cover alone, etc. The first row lists families that are (100,100) clusterable, whereas the second includes families that are at least (90,90) clusterable.