heatmap of protein change across four subtypes (luminal a, luminal b, her2+, and basal-like) and additionally unknown subtype. The y axis is protein markers. Each colored cell represents a protein intensity calculated by the Equation (5). The rows use hierarchical clustering with Euclidean distance. The columns use hierarchical clustering with protein intensity distance defined in the Equation (6).
Zhang and Chen BMC Medical Genomics 2013 6(Suppl 1):S6 doi:10.1186/1755-8794-6-S1-S6