FROM TH2F
constant
0.035607875425470496+-0.021366123261597546
chi2/ndof = 0.023702534309426666
plane
0.002719789067097856+-0.05063533136197146
invpt slope = 0.03800836183305288+-0.030612470830586946
theta slope = -0.0010220071020065145+-0.06787109418513358
chi2/ndof = 0.0037780259053517605
from tgraph2D
constant
0.05147235180736687+-0.004263797160589465
chi2/ndof = 0.0017089168257676786
plane
0.007474008246870181+-0.0036873230043879485
invpt slope = 0.04028650262455553+-0.0017985405374054742
theta slope = -0.0047066176029148706+-0.005320127921291514
chi2/ndof = 0.00026696931799189875