subtract 10%iles      0.00000   0.00467396    0.0466939    0.0924282
     0.145208     0.211927     0.305660     0.459080     0.809129
stardiff 10%iles    -0.258133    -0.117589   -0.0567557   -0.0181632
      0.00000   0.00491176    0.0435857     0.106395     0.250944
stardiff contour -excluded 0.005    -0.258133     0.250944