HaCaT expression CoGAPS gene set statistics. Gene set statistics for pathway activity of the HaCaT expression data calculated from eq. 3 averaged across three CoGAPS simulations. Error bars indicate minimum and maximum values of the pathway activity statistic in each of the three CoGAPS simulations. Bars are grouped and labeled according to the dominant experimental condition to which inferred CoGAPS patterns correspond. Within each block, statistics are provided for the STAT, RAS, AKT, TGFB, and Notch pathways (left to right) colored according to the figure legend.