Fig 2. Gene expression maps for 54 677 probes in columns (genes) and 256 patients (rows).

A) raw data distribution, before applying GCA; B) overrepresentation map revealing the dominant trend after GCA has been applied. Specific values are represented by shades of grey (with darker shades corresponding to greater values). The lighter the shading (d,e), the closer the value is to 0; the darker the shading (a,b), the greater the ratio; c–ideal representation.