P    #regions in PPM
# 2016-05-30 12:22:24 +0530  mac@bolaji-6.local
# low field   high field   mi   maxi
  14.625244217822646  -0.15867257740856397  -6.779  142.369  # for region 1
  -0.15868257740856398  -0.26447096234760664  -5.713  0.000  # for region 2
  -0.26447096234760664  -0.4231535397561706  -5.713  0.000  # for region 3
  -0.4231535397561706  -0.5024948284604526  -5.713  96.676  # for region 4
