Fig. 2

Comparison of power for the five test methods under the alternative scenarios. Here, the PVE in the auxiliary study was set to 0.3 (top) or 0.5 (bottom), the sample size of the target study was 300 and the sample size of the auxiliary study was 165, θ = 0.1 or/and τ = 0.02. A 30% of SNPs were null; B 50% of SNPs were null; C 70% of SNPs were null