Dendrograms of average-linkage hierarchical clustering. Dendrograms for (a) AFX, (b) ABI, (c) AG1, (d) GEH, and (e) ILM data. Spearman's rank correlation coefficient is used as a similarity metric; left-hand scale represents (1- correlation coefficient). Each gene list is denoted as "Method_Comparison_Site ". For example, a ranked list calculated from samT when comparing C versus D for site 2 data is denoted as "samT_CD_2".