FROM TH2F
constant
0.028301497453744145+-0.02153970692640583
chi2/ndof = 0.0062252675125308386
plane
0.06017003248391588+-0.14129322943820305
invpt slope = 0.008592548378915496+-0.020831630148239296
theta slope = -0.03733283631867726+-0.11690732326374605
chi2/ndof = 0.001870181658078012
from tgraph2D
constant
0.032300747841431506+-0.0019148804445011478
chi2/ndof = 0.0002493401639416374
plane
0.06939912579972325+-0.005835577254102882
invpt slope = 0.008841830220508707+-0.0008820301790454666
theta slope = -0.04446817579174939+-0.004910512461648729
chi2/ndof = 6.697546231323215e-05