FROM TH2F
constant
0.04462209570520474+-0.01920358430256577
chi2/ndof = 0.01706675738587498
plane
0.09748647016087879+-0.11367457975230212
invpt slope = 0.0098968644788428+-0.0104476910126211
theta slope = -0.06643264512481802+-0.0960586555848773
chi2/ndof = 0.006214187122187762
from tgraph2D
constant
0.05927927287114659+-0.00310315222863668
chi2/ndof = 0.0012229533270150291
plane
0.13330263610661963+-0.009863327117747516
invpt slope = 0.010843443163856221+-0.0009867470118241379
theta slope = -0.09670476569323017+-0.008650444143365636
chi2/ndof = 0.00043869222156328304