Figure 6.

Effect of the number of microarray experiments on the environmental stress data subset with 526 genes. Using YPD as the evaluation criterion, we compared the extent of co-regulated genes using different numbers of microarray experiments on the subset of environmental stress data with 526 genes and 198 experiments at 30 clusters. The median z-scores 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.