Table 5. Number of differentially expressed genes by different statistical tests for the artificial Dataset 4, where #G _up, #G _down denote up-regulated and down-regulated genes, respectively.

	parametric tests at 0.05 p-value cutoff					non-parametric tests at 0.05 p-value cutoff
	t-test	Welch’s t-test	Bayes’ t-test	Pearson’s correlation	common	Limma	SAM	Wilcoxon	permute	common
#G up	90	89	87	56	51	570	573	594	575	532
#G dw	29	29	28	23	23	342	342	365	373	336