Figure 2

The effect of sample size on optimal subset selection at D2 and D4 using R² (a and b), and S ε and R² (c and d). a and b, the optimal subsets are identified from a sample using R². They are rated using the R² results obtained from 5,000 individuals. c and d, the optimal subsets are identified from a sample using Sε. They are rated using the R² results obtained from 5,000 individuals. The R² graphs are shown as broken lines for comparison.