FROM TH2F
constant
0.01669579981876504+-0.018458889685897532
chi2/ndof = 0.006859203393572599
plane
0.05023151467186063+-0.14505476629683275
invpt slope = 0.008741328492568137+-0.019249248292946542
theta slope = -0.036979270823722966+-0.12051207566935992
chi2/ndof = 0.0007722520136264952
from tgraph2D
constant
0.021253366082990815+-0.0016986554913501813
chi2/ndof = 0.00015869867630667972
plane
0.056553452193091956+-0.004313544845477587
invpt slope = 0.00948453711682411+-0.0005507574542401507
theta slope = -0.043253806601532+-0.003763130037774917
chi2/ndof = 1.8969962024041498e-05