FROM TH2F
constant
0.022650366816350936+-0.019429516549364645
chi2/ndof = 0.02194965196243525
plane
0.08352795726553316+-0.1201946256594239
invpt slope = 0.008109251664466199+-0.023510103995580452
theta slope = -0.06333101195183835+-0.09944301138803546
chi2/ndof = 0.011002398074983455
from tgraph2D
constant
0.04039754901140968+-0.005717912634898125
chi2/ndof = 0.0021905331680168103
plane
0.1695794352012273+-0.019419755480642495
invpt slope = 0.007712087294200825+-0.004274013739738238
theta slope = -0.14125153997656226+-0.01746606417061284
chi2/ndof = 0.0010305999175022412