FROM TH2F
constant
0.017068004183577706+-0.022405359248600168
chi2/ndof = 0.0022270207434500547
plane
-0.009414407226780068+-0.22775627234639093
invpt slope = 0.0017621452450273941+-0.026473911597503896
theta slope = 0.02000028511742022+-0.1721949781814802
chi2/ndof = 0.0019286738610637647
from tgraph2D
constant
0.01887871733328661+-0.0009725678909155177
chi2/ndof = 3.405197888784836e-05
plane
-0.002377145381093338+-0.009802067570500091
invpt slope = 0.0026492507005245036+-0.0009693644114188233
theta slope = 0.014070139508024502+-0.007548110629619363
chi2/ndof = 2.8918737494336088e-05