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Table 5 Results of the simulation study: Powers of the original two-part test and the two-part permutation test; 5,000 data sets with n1 = n2 = 10 were generated for each configuration (notation as in Table 4, significance level α = 0.05)

From: Two-part permutation tests for DNA methylation and microarray data

Configuration Original two-part test Two-part permutation test
p1 = p2 = 0, μ = 2.5 0.82 0.93
p1 = p2 = 0.3, μ = 2.5 0.67 0.67
p1 = 0.4, p2 = 0.2, μ = 2.5 0.76 0.75
p1 = 0.2, p2 = 0.4, μ = 2.5 0.74 0.74
p1 = 0, p2 = 0.3, μ = 2.5 0.93 0.96
p1 = 0.3, p2 = 0, μ = 2.5 0.95 0.97
p1 = 0, p2 = 0.4, μ = 0 0.45 0.47
cutoff value = 0.5, μ = 2.5 0.85 0.90
cutoff value = 1, μ = 2.5 0.92 0.92