P    #regions in PPM
# 2012-04-20 13:08:20 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  1000.0  6.392372354116052  0.000  1000000.000  # for region 1
  6.392372354116052  2.4950872737033625  1.816  18.838  # for region 2
  2.474466717722343  0.1  0.000  1000000.000  # for region 3