(a) Bins of instances ofX3for different values; the range of each bin is chosen as 0.033. Among the 26 bins, 13 bins have at least two X3 values; the others are discarded. (b) Representation of 13 sets of corresponding X2 values in those bins that have at least two X3. The bars connect two or more X2 values within each X3 bin.
Chou and Voit BMC Systems Biology 2012 6:84 doi:10.1186/1752-0509-6-84