FROM TH2F
constant
0.02415643712313283+-0.018847857241301124
chi2/ndof = 0.011300822784708894
plane
0.055026955009223014+-0.0982360185695736
invpt slope = -8.77879888775755e-05+-0.015502047237857216
theta slope = -0.028061035052116337+-0.09242454320001847
chi2/ndof = 0.01006836615231996
from tgraph2D
constant
0.03527401098013873+-0.00233768647406775
chi2/ndof = 0.0004207879099328505
plane
0.09972264925700777+-0.008314305577257371
invpt slope = 0.003490789187847407+-0.0014348935321565161
theta slope = -0.0674059858168056+-0.00801931685611214
chi2/ndof = 0.00021771529614046298