FROM TH2F
constant
0.011572556463792093+-0.011533338218820258
chi2/ndof = 0.015683496101534834
plane
0.010147542308096153+-0.06231270057076679
invpt slope = 0.009090092282765187+-0.009038795357562237
theta slope = -0.009631630903829742+-0.06693687365148243
chi2/ndof = 0.003468642115571268
from tgraph2D
constant
0.02547223741200938+-0.0015587532543163672
chi2/ndof = 0.0002259631888320138
plane
0.04244461864057439+-0.004226326326899222
invpt slope = 0.00754763282574537+-0.00047221128212343594
theta slope = -0.0349285062023118+-0.004037052136177128
chi2/ndof = 5.009947664153373e-05