FROM TH2F
constant
0.04748165493369491+-0.02836853560476778
chi2/ndof = 0.021877484007184957
plane
0.07293547134390739+-0.11246787731993214
invpt slope = -0.010734576089765347+-0.031470688437329225
theta slope = -0.008620655028105134+-0.11549352615163196
chi2/ndof = 0.020062542634961874
from tgraph2D
constant
0.06858773331361462+-0.00319063014565481
chi2/ndof = 0.0006820680886247042
plane
0.10961489631128643+-0.012186054357350581
invpt slope = 0.007071826801025605+-0.003077675362011943
theta slope = -0.05311422513089377+-0.012579343027171693
chi2/ndof = 0.0005294147172917064