Fig. 3.

Performance evaluation in presence of irrelevant studies. Left panels: Performance of risk variant identification measured by AUC. Right panels: Performance of risk prediction measured by correlation between the observed phenotype values and the predicted values. In all panels, $\{\mathbf{X},\mathbf{y}\}$ in the x-axis indicates the performance of individual-level data only, q corresponds to the performance of integrating the individual-level data with P-values from a study simulated using parameter $u_k=\text{Pr}({\gamma }_j^{(k)}=1|{\gamma }_j=1)\in \{0.05,0.1,0.3,0.5,0.7,0.9,1\}$, and s indicates the stepwise performance achieved at the s-step