FROM TH2F
constant
0.020361597443631807+-0.026497623473741762
chi2/ndof = 0.0016485786403932572
plane
0.02742903016581589+-0.36234021746138395
invpt slope = 0.005691435395689145+-0.02944798253715928
theta slope = -0.012387671477951572+-0.2832626244762192
chi2/ndof = 0.000119252197780184
from tgraph2D
constant
0.021008550458927123+-0.001108293071713915
chi2/ndof = 3.93060330498862e-05
plane
0.02769507339421203+-0.00382090042052339
invpt slope = 0.005504502397324274+-0.0002878780379185068
theta slope = -0.012202721694993535+-0.002991535399909029
chi2/ndof = 2.634851048508647e-06