FROM TH2F
constant
0.02290871179481419+-0.02308161041652149
chi2/ndof = 0.00258340754223556
plane
-0.022853585907608196+-0.1777697001035678
invpt slope = 0.004075861389005885+-0.025601191124643843
theta slope = 0.03572581323018233+-0.1524436786811076
chi2/ndof = 0.0008362806511411603
from tgraph2D
constant
0.024676578057695096+-0.001051629348268277
chi2/ndof = 5.308436573482217e-05
plane
-0.017083509590363855+-0.004988538420273259
invpt slope = 0.004320732388576854+-0.0005775884611552921
theta slope = 0.030991291780911864+-0.004191420160902552
chi2/ndof = 1.7063993286526207e-05