FROM TH2F
constant
0.010472324590011118+-0.015427487708570053
chi2/ndof = 0.0054876827765057475
plane
0.04170349465868671+-0.12075679482936384
invpt slope = 0.0035522919735634702+-0.013516783755937267
theta slope = -0.02850789073003696+-0.09396626526158258
chi2/ndof = 0.0015410663155519051
from tgraph2D
constant
0.014459166180932004+-0.001174540608381018
chi2/ndof = 6.759773639645163e-05
plane
0.044110740585892094+-0.00420525154592026
invpt slope = 0.0038874373931590506+-0.0005624431215145088
theta slope = -0.03010729242208276+-0.0035567133749196335
chi2/ndof = 2.1722285641466958e-05