FROM TH2F
constant
19.01886182292857+-0.5368096242605455
chi2/ndof = 15.548733194395147
plane
8.710669225754602+-1.1650465520339262
invpt slope = 13.16388876639916+-0.8468373491836516
theta slope = -3.770279521508436+-1.6029050434822203
chi2/ndof = 12.201251389626487
from tgraph2D
constant
30.51904383676702+-2.6921249520552406
chi2/ndof = 587.050477703413
plane
3.3131185644444656+-4.103249605182514
invpt slope = 19.423237035601936+-2.3621173111412728
theta slope = 16.466120295937927+-6.206610510149394
chi2/ndof = 295.76069982891164