FROM TH2F
constant
0.01921546648212066+-0.016568242638010513
chi2/ndof = 0.0027393291533475803
plane
0.031046288711529996+-0.09188161749875642
invpt slope = 0.003297382734641386+-0.012680426385416999
theta slope = -0.015303768609698152+-0.08040204307827496
chi2/ndof = 0.001450005368386008
from tgraph2D
constant
0.020251473181870386+-0.0008733268570942955
chi2/ndof = 5.949058434755559e-05
plane
0.030427111437505497+-0.0030496130471020714
invpt slope = 0.004212470962484125+-0.0004396566303894458
theta slope = -0.015719974660062728+-0.0027954555521600387
chi2/ndof = 2.5830818983601305e-05