subtract 10%iles      0.00000   0.00317788    0.0413756    0.0842299
     0.139390     0.214931     0.330745     0.546031      1.11711
stardiff 10%iles    -0.286473    -0.122085   -0.0542613   -0.0142030
      0.00000   0.00726496    0.0458931     0.112685     0.277123
stardiff contour -excluded 0.005    -0.286473     0.277123