FROM TH2F
constant
0.021831904389015513+-0.027923303369552826
chi2/ndof = 0.0014487320929034676
plane
-0.011461369648807139+-0.2833451749534921
invpt slope = 0.004757897503995895+-0.03641741056233554
theta slope = 0.02467858029369432+-0.24546934987655702
chi2/ndof = 0.0005529536185417415
from tgraph2D
constant
0.022103399854847872+-0.0010691032585915037
chi2/ndof = 3.657541688099038e-05
plane
-0.011553784050716335+-0.005872607226756545
invpt slope = 0.005221568902264652+-0.0007000339206898724
theta slope = 0.024559252745786506+-0.005056005129071512
chi2/ndof = 1.1107168153028379e-05