(a) The 8thbin in Figure2(b) contains two different X
values corresponding to the “blue” instances in Figure2(a) for X
~1.26. The corresponding values of X2 and –S2, obtained from the plot of X2 versus –S2, are (1.54, -1.35) and (2.93, 0.93). These two points are considered a pair and linked with a red line. (b) The 5th bin of Figure 2(b), corresponding to the “red” instances in Figure 2(a), contains four instances of X1 ~0.26. Their corresponding values of X2 and –S2 are (1.20, 0.05), (1.37, 0.35), (1.66, 1.02), and (1.99, 1.65). Two points each are considered a pair and linked with a red line.