in chisquare.dat_errors1:
  B=[7.9050162,14.212582,22.299488,62.197731]
  v2=[0.25113237,0.20583063,0.13679404,0.02605744]
  Ev2=[0.013628665,0.008061016,0.017410308,0.002633245]

chisquare.dat_errors2
  B=[7.955,14.20,21.81,62.1983]
  v2=[0.246,0.202,0.139,0.02753]
  Ev2=[0.01,0.01,0.01,0.01]
