P    #regions in PPM
# 2012-08-26 10:40:07 -0500  mfjofre@watusi.nmrfam.wisc.edu
# low field   high field   mi   maxi
  8.468388850918533  7.285033203628607  1.468  5.257  # for region 1
  5.602449392638244  4.770402453137514  0.436  4.485  # for region 2
  3.3096978260140117  2.921409254247005  3.364  5.441  # for region 3
  2.0708723827573703  1.0724160553564954  5.638  16.915  # for region 4