P    #regions in PPM
# 2016-12-20 14:51:46 -0600  bmrbmb@tonga.nmrfam.wisc.edu
# low field   high field   mi   maxi
  1000.0  143.55122422991695  0.000  1000000.000  # for region 1
  143.55122422991695  5.214467546813223  -8.283  16.985  # for region 2
  5.214467546813223  0.1  0.000  1000000.000  # for region 3
