Table 5

Estimating the number of clusters from microarray data

Dataset

Known

Clest

gap

gapPC

sil

ch

kl

hart

Lymphoma

3

3

10

8

3

2

4

4

Leukemia

3

3

10

5

3

2

3

3

NCI60

8

3

10

8

3

2

6

2

Melanoma

2

2

9

4

2

2

8

1

Dudoit and Fridlyand Genome Biology 2002 3:research0036.1   doi:10.1186/gb-2002-3-7-research0036