subtract 10%iles      0.00000   0.00913239    0.0903299     0.176667
     0.284307     0.438119     0.685022      1.12545      2.12286
stardiff 10%iles    -0.705964    -0.299818    -0.127688   -0.0270636
      0.00000    0.0313760     0.132712     0.304273     0.706890
stardiff contour -excluded 0.005    -0.705964     0.706889