Figure 2.

A Sammon map of the 100 estrogen receptor-positive patients within the LR⁺RT⁺ group (red dots, 20 patients) and the LR^-RT⁺/LR^-RT^- group (blue dots, 80 patients). The Sammon map was performed with all 26,824 reporters. Euclidean distance in log₂ expression values was used as the distance measure. LR^-RT^- = no local recurrence, no radiotherapy given; LR^-RT⁺ = no local recurrence after radiotherapy; LR⁺RT⁺ = local recurrence developed after radiotherapy.