Heat map for genes differentially expressed among the four groups of T cells. Only those genes with a FDR (q) ≤0.01 and fold change ≥5 are included in this map. Data for each gene are standardized separately before being plotted, as is standard in drawing heat maps, so that all genes have a similar scale and the relative differences for all genes can be visualized on a single plot.
Zhou et al. Genome Biology 2008 9:R119 doi:10.1186/gb-2008-9-7-r119