FROM TH2F
constant
0.025585918887631388+-0.02468174517996094
chi2/ndof = 0.0077990412522120425
plane
0.09348955568795905+-0.17152509627047552
invpt slope = 0.0058250386852435635+-0.031626905114710314
theta slope = -0.06931260479004611+-0.15168143207828907
chi2/ndof = 0.0019336772415976921
from tgraph2D
constant
0.031236850007289926+-0.002480108830561274
chi2/ndof = 0.00028909417113458675
plane
0.09817894360189547+-0.007070003176739867
invpt slope = 0.007827493681655811+-0.0012565594611057278
theta slope = -0.07504636108181163+-0.006432049288533251
chi2/ndof = 5.340545461227329e-05