Figure 6From: Cross-platform comparability of microarray technology: Intra-platform consistency and appropriate data analysis procedures are essentialPOG by chance. The percentage of overlapping genes (POG) increases by chance when the percentage (P) of selected genes (out of candidate genes) increases. For k replicates or platforms compared, the log ratios of the simulated replicates or platforms are assumed to have a normal distribution of N(0,1) and no correlation between each other (LRr2 = 0). The expected POG by chance is 100*(P/2)k-1, where k is the number of replicates or platforms. POG2, POG3, POG4, and POG5 correspond to the comparison of 2, 3, 4, and 5 replicates (or platforms), respectively.Back to article page