P    #regions in PPM
# 2024-02-23 17:09:54 -0500  suvee@LAPTOP-P57SIM1R
# low field   high field   mi   maxi
  10.48548137940827  6.600637506419957  3.416  54.123  # for region 1
  5.836258503632905  4.091675838448339  2.031  29.723  # for region 2
  3.7319680724309023  3.1114721760508246  24.634  79.117  # for region 3
  2.9226255988916705  0.22481735376089773  14.205  109.325  # for region 4
