FROM TH2F
constant
0.029073680953822095+-0.02766038443978239
chi2/ndof = 0.019670113045828694
plane
0.10016455687662895+-0.1625025460802536
invpt slope = 0.015056514677442727+-0.04358612852767187
theta slope = -0.09515356536282372+-0.16319078835740347
chi2/ndof = 0.004610277687384941
from tgraph2D
constant
0.043877102484050905+-0.0038557582058027966
chi2/ndof = 0.0006541423390501984
plane
0.08492581781153521+-0.009388152994228448
invpt slope = 0.019268916196700934+-0.002129492030082299
theta slope = -0.07699770850992713+-0.010635614769312874
chi2/ndof = 0.00013067563106187367