I am using v2.23/10 on HPUX10.2 running aCC. I have a macro that plot several points and do a linear fit. The error on the fitted parameters is truncated in the stat box. Is there a way to fix this? Below is the macro I used. Seng void plot_mombias() { gROOT->Reset(); c1 = new TCanvas("c1","HMC Output vs Beam Momentum",200,10,700,500); c1->SetGrid(); // draw a frame to define the range TH1F *hr1 = c1->DrawFrame(140,-0.005.,190,0.03); hr1->SetXTitle("Average Beam Momentum"); hr1->SetYTitle("HMC Estimate - Input Generation Value"); hr1->SetTitleOffset(1.3, "Y"); hr1->SetTitle("HMC Output (Input g=-0.2154) vs Average Beam Momentum"); const Int_t n = 8; Float_t x[n] = {147.577700,152.554231,157.480476,162.457551,167.479134,172.467954, 177.447382,182.435490}; Float_t ex[n] = {0, 0, 0, 0, 0, 0, 0, 0}; Float_t y[n] = {.12963e-1,.11759e-1,.06063e-1,.08780e-1,.10120e-1,.10231e-1, .12242e-1,.10814e-1}; Float_t ey[n] = {2.82768e-03, 2.43126e-03,2.17597e-03,2.02725e-03,1.97245e-03,1.94164e-03, 1.97880e-03, 2.05305e-03}; Float_t chi2[n] = {344.125, 368.906, 390.534, 304.297, 383.312, 359.423, 417.878, 393.309}; Float_t dof[n] = {285, 285, 284, 288, 287, 291, 289, 292}; // create graph gr = new TGraphErrors(n,x,y,ex,ey); gr->SetMarkerColor(kBlack); gr->SetLineColor(kBlack); gr->SetMarkerStyle(20); gr->Draw("P"); gStyle->SetOptFit(111); gStyle->SetStatW(0.2); gStyle->SetStatH(0.1); TF1 *f1 = new TF1("f1", "[0]+[1]*(x-155)", 145, 185); gr->Fit("f1"); c1->Print("hybrid_mombias.eps"); }
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