FROM TH2F
constant
0.023375597996772426+-0.01854073337406871
chi2/ndof = 0.00434283148150206
plane
0.05160128790644938+-0.13568231224562377
invpt slope = 0.0025604559592014874+-0.01334408835997651
theta slope = -0.027214223231025802+-0.10921759712504346
chi2/ndof = 0.0030237334084868917
from tgraph2D
constant
0.026457201376312117+-0.001435092222628669
chi2/ndof = 0.00015240223687598565
plane
0.06279566816262701+-0.0072766213635164214
invpt slope = 0.004061817190024888+-0.0007690762792279339
theta slope = -0.0371907500751182+-0.005974952391675243
chi2/ndof = 8.247491185258611e-05