FROM TH2F
constant
0.04624571973692321+-0.017054430025007353
chi2/ndof = 0.0323509606731278
plane
0.014089304328718997+-0.044002414317156784
invpt slope = 0.02285078645848275+-0.011512370156709225
theta slope = -0.01037447315886299+-0.052184892700956956
chi2/ndof = 0.0062147240735460465
from tgraph2D
constant
0.07287776864423379+-0.004418235693540283
chi2/ndof = 0.003416141159466088
plane
0.012520554992152674+-0.0043206298634045764
invpt slope = 0.026368089903724284+-0.0008606387645198002
theta slope = -0.012145050755468241+-0.00545852765224292
chi2/ndof = 0.0005222622127210127