Figure 4

Hierarchical Clustering of Correlations of Expression Ratios for 1,648 Genes in MPSS, Affymetrix and Agilent. Plot A shows the Pearson's correlation while Plot B shows the Spearman's rank correlation. Distance for clustering was calculated by 1-r, where r represents correlation coefficient value. A complete linkage algorithm was used for hierarchical clustering. Genes used are the same with those for Figure 2. Note that the Agilent samples with code ending with "Z" are those for which ratio data came from self-self microarray. Codes for samples are described in Table 1.