Figure 1

 _jk against ε _xy scatterplots with smoothed densities color representation. The plots correspond to the first array in Set 1 (see Method Section). Dark and light shades of blue indicate the presence of many and few points, respectively. (a) Higher  _jk is accompanied by larger residual variance on the raw scale. (b) Glog transformation makes  _jk and the variability of ε _xy approximately independent.