Figure 2

A small set of genes accurately predicts six ALL subgroups. Comparison of average prediction accuracies obtained with the top 20, top 15, top 10, top 5 and top 2 subgroup-discriminating probe sets identified by RMA/RF after cross validation (see Supplemental Document, Table S3). For each cross validation analysis (n = 100) a new training (n = 79) and test set (n = 25) was chosen and discriminating probes sets were selected using the new training set. Shown are prediction accuracies for individual ALL subgroups (main panel) and the overall prediction accuracies (panel on the right).