I am trying to fit a curve on the histogram which has more than 11 parameters. However, I noticed that the
SetParameters() allows only 11 entries. So, my code is giving an error.
I just want to fit the histogram and in output chi2 minimized parameters. Any suggestion would be a great help. Following is the snippet of the code.
TF1 *fit2 = new TF1("fit2", my_func, 1, 6., 12); fit2->SetParameters(4.96478e+00, 2.31372e-01, 2.13283e+02, 4.71709e-01, 5.16176e+00, 8.75612e-02, 1.22796e+04, 1.25758e+00, 4.24852e+00, 1.34468e-01, 1.36518e+02, 1.); fit2->SetLineColor(kRed); fit2->SetLineWidth(4); h2->Fit(fit2, "R+");