Figure 4From: From co-expression to co-regulation: how many microarray experiments do we need?Effect of the number of microarray experiments on the compendium data subset with 537 genes. Using YPD as the evaluation criterion, we compared the median z-scores using different numbers of experiments and different clustering algorithms (hierarchical average-link and complete-link using correlation, model-based clustering algorithms MCLUST and IMM on standardized data) on the compendium data subset with 537 genes and 258 experiments at 40 clusters. The median z-scores (and hence, proportions of co-regulated genes) increase as the number of experiments increases, and MCLUST produces relatively high median z-scores. We observed very similar results using ChIP data as the evaluation criterion.Back to article page