subtract 10%iles      0.00000      0.00000    0.0456014     0.100354
     0.165246     0.247983     0.360773     0.536727     0.919802
stardiff 10%iles    -0.317751    -0.142184   -0.0670353   -0.0204330
      0.00000   0.00766689    0.0530414     0.126454     0.306412
stardiff contour -excluded 0.005    -0.317751     0.306412