FROM TH2F
constant
0.007186999409513966+-0.013081247401131554
chi2/ndof = 0.0028846621328816324
plane
0.014083317081216584+-0.13630379588839672
invpt slope = 0.0031765479955189776+-0.012351128187543565
theta slope = -0.008349247832646546+-0.10638344415833786
chi2/ndof = 0.001286769307241804
from tgraph2D
constant
0.009077168191915013+-0.0006856373035007157
chi2/ndof = 2.2094630061730486e-05
plane
0.014476493996763864+-0.004615810636613648
invpt slope = 0.0031702429517235352+-0.000428188366876536
theta slope = -0.00793082481349574+-0.003626271220960971
chi2/ndof = 1.0301307024041914e-05