Figure 3From: The use of genetic programming in the analysis of quantitative gene expression profiles for identification of nodal status in bladder cancer Histogram of Gene Usage Frequencies. Examination of the gene usage frequencies among the best of 220 rules drawn from 20 runs of 11 folds showed a strong preference for the KDR, MAP2K6 and ICAM1 genes which were also components of some of the major gene expression motifs. Rules created using only the top three genes showed a comparatively better performance, indicating their importance in the genesis of nodal metastasis.Back to article page