FROM TH2F
constant
0.019340493631788094+-0.01584850914145666
chi2/ndof = 0.010716076180388185
plane
0.05263945050203275+-0.09954039914421792
invpt slope = 0.008814845247358524+-0.014024226140892626
theta slope = -0.037359836784912975+-0.07923903554422838
chi2/ndof = 0.002412065548292564
from tgraph2D
constant
0.027972907096129568+-0.001867495240509211
chi2/ndof = 0.0002894656932723422
plane
0.06149443369448502+-0.004883533952574634
invpt slope = 0.009401635163080369+-0.000803864340845077
theta slope = -0.04433609486965007+-0.0042045373731999635
chi2/ndof = 7.996488757972343e-05