FROM TH2F
constant
0.022447182483441942+-0.017780818315797906
chi2/ndof = 0.005574379008466066
plane
0.050519876535653645+-0.1181571198367926
invpt slope = 0.0004970518446767464+-0.011236684975669466
theta slope = -0.024010352552475477+-0.09656481700537335
chi2/ndof = 0.00482644340402808
from tgraph2D
constant
0.026763312281116988+-0.0015427445817161915
chi2/ndof = 0.00018326468502718717
plane
0.065134664034404+-0.007790224247467459
invpt slope = 0.0030699194414865196+-0.000860323445937655
theta slope = -0.03771702082048364+-0.006479182719056393
chi2/ndof = 0.00011892758102841991