FROM TH2F
constant
0.01632977756069362+-0.012591327559435293
chi2/ndof = 0.004396123790749002
plane
0.035980054914395876+-0.11966689711902578
invpt slope = 0.0025800225537787+-0.0053844567279741585
theta slope = -0.02199684919465391+-0.09597486544220843
chi2/ndof = 0.0021087580127196782
from tgraph2D
constant
0.02002652050540884+-0.0008768421177384337
chi2/ndof = 8.303602673755618e-05
plane
0.05300416367519359+-0.005048367031474421
invpt slope = 0.0025026896162078306+-0.00020722129950332305
theta slope = -0.03363402199249785+-0.003955546473433082
chi2/ndof = 2.91679361997894e-05