Bridge-PLSR loadings. Loadings from the Bridge-PLSR of the smoker-data are plotted for the two first components. The blue spots represent features that are not found significant by the jack-knife procedure. The green spots are genes that are found significant by both SAM and Bridge-PLSR, while the red spots are called significant by the T2-test but not by SAM. The significant features span mainly the direction of smokers vs. never smokers, but Bridge-PLSR detects some genes relevant for former smokers as well.