Table 1.

Numerical Comparison of the Exact Calculation and the Adaptive DAP Algorithm at Different Threshold Values in the Second Simulation Study

λ	Mean of C∗/C	RMSE of Approximate PIP
0.01	0.994	2.36 × 10−3
0.02	0.986	5.32 × 10−3
0.03	0.963	9.83 × 10−3
0.04	0.921	1.40 × 10−2
0.05	0.854	2.42 × 10−2