Estimating the number of clusters; results for microarray data. Plots of dk, gapPCk, and k versus k, with error bars computed as described in Results. The horizontal lines for the dk plots correspond to a dmin cut-off of 0.05. The estimates for the number of clusters are indicated by filled plotting symbols.
Dudoit and Fridlyand Genome Biology 2002 3:research0036.1 doi:10.1186/gb-2002-3-7-research0036