Fig. 3From: Identification of hot regions in hub protein–protein interactions by clustering and PPRA optimizationSilhouette width plots under optimized k value. a 1A22, Average silhouette width is 0.55 under k = 2; b 1FCC, Average silhouette width is 0.76 under k = 2; c 3HFM, Average silhouette width is 0.57 under k = 3Back to article page