Figure 2

Clustering of all samples based on log₂-ratio data of 3.4 K common transcripts is shown in A. The dendrogram shows three major clusters of samples indicated by red (Batt P12 samples), blue (MCF7 samples) and green (Jurkat samples). Pearson correlation coefficients corresponding to the maximum and minimum correlation nodes in the dendrogram shown in A (intra- and inter-platform correlations) are given in B. Since the platforms detected a different number of targets from slide to slide, all correlations were calculated using the maximal number of targets detected in common between each pair-wise combination (complete, pair-wise correlation).