FROM TH2F
constant
0.013355926827376522+-0.009499618357351382
chi2/ndof = 0.053869682981295
plane
0.0024259544514962502+-0.052584174723288725
invpt slope = 0.003668884516899053+-0.005562880396675306
theta slope = -0.0016264833819107489+-0.04041600798378427
chi2/ndof = 0.051213398993158764
from tgraph2D
constant
0.07146516583696484+-0.0058388210013023065
chi2/ndof = 0.005795611214087707
plane
0.108357181365071+-0.015735389091823634
invpt slope = 0.012130037500525392+-0.0011854872823724928
theta slope = -0.09046758284698948+-0.012775157827624842
chi2/ndof = 0.002613421658390245