To get a start value for the Surface Sampling Algorithm
Copy sdf.parm.000.for_start to sdf.parm.000 and run using 
sh -c "${PWD}/mle.sh sdf.ctrl.000 >output 2>error &"
then run findmin to starting values. 

To get a start value for standard deviations
Copy sdf.parm.000.for_sdev to sdf.parm.000 and run using 
sh -c "${PWD}/mle.sh sdf.ctrl.000 >output 2>error &"
Takes a long time, about three days.

To compute standard devitions Then cd to sdf_npb_sv an run the Surface
Sampling Algorithm following instructions there.

Next cd to sdf_regr and follow the instructions there.
