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"# pdf000_Laplace\n",
"Test the TMath::LaplaceDist and TMath::LaplaceDistI functions\n",
"\n",
"\n",
"\n",
"\n",
"**Author:** Anna Kreshuk \n",
"This notebook tutorial was automatically generated with ROOTBOOK-izer from the macro found in the ROOT repository on Tuesday, May 19, 2026 at 08:26 PM."
]
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"TCanvas *c1=new TCanvas(\"c1\", \"TMath::LaplaceDist\",600,800);\n",
"c1->Divide(1, 2);\n",
"TVirtualPad *pad1 = c1->cd(1);\n",
"pad1->SetGrid();\n",
"TF1 *flaplace = new TF1(\"flaplace\", \"TMath::LaplaceDist(x, [0], [1])\", -10, 10);\n",
"flaplace->SetParameters(0, 1);\n",
"TF1 *f1 = flaplace->DrawCopy();\n",
"f1->SetLineColor(kRed);\n",
"f1->SetLineWidth(1);\n",
"flaplace->SetParameters(0, 2);\n",
"TF1 *f2 = flaplace->DrawCopy(\"same\");\n",
"f2->SetLineColor(kGreen);\n",
"f2->SetLineWidth(1);\n",
"flaplace->SetParameters(2, 1);\n",
"TF1 *f3 = flaplace->DrawCopy(\"same\");\n",
"f3->SetLineColor(kBlue);\n",
"f3->SetLineWidth(1);\n",
"flaplace->SetParameters(2, 2);\n",
"TF1 *f4 = flaplace->DrawCopy(\"same\");\n",
"f4->SetLineColor(kMagenta);\n",
"f4->SetLineWidth(1);\n",
"TLegend *legend1 = new TLegend(.7,.7,.9,.9);\n",
"legend1->AddEntry(f1,\"alpha=0 beta=1\",\"l\");\n",
"legend1->AddEntry(f2,\"alpha=0 beta=2\",\"l\");\n",
"legend1->AddEntry(f3,\"alpha=2 beta=1\",\"l\");\n",
"legend1->AddEntry(f4,\"alpha=2 beta=2\",\"l\");\n",
"legend1->Draw();\n",
"\n",
"TVirtualPad *pad2 = c1->cd(2);\n",
"pad2->SetGrid();\n",
"TF1 *flaplacei=new TF1(\"flaplacei\", \"TMath::LaplaceDistI(x, [0], [1])\", -10, 10);\n",
"flaplacei->SetParameters(0, 1);\n",
"TF1 *g1=flaplacei->DrawCopy();\n",
"g1->SetLineColor(kRed);\n",
"g1->SetLineWidth(1);\n",
"flaplacei->SetParameters(0, 2);\n",
"TF1 *g2=flaplacei->DrawCopy(\"same\");\n",
"g2->SetLineColor(kGreen);\n",
"g2->SetLineWidth(1);\n",
"flaplacei->SetParameters(2, 1);\n",
"TF1 *g3=flaplacei->DrawCopy(\"same\");\n",
"g3->SetLineColor(kBlue);\n",
"g3->SetLineWidth(1);\n",
"flaplacei->SetParameters(2, 2);\n",
"TF1 *g4=flaplacei->DrawCopy(\"same\");\n",
"g4->SetLineColor(kMagenta);\n",
"g4->SetLineWidth(1);\n",
"\n",
"TLegend *legend2 = new TLegend(.7,.15,0.9,.35);\n",
"legend2->AddEntry(f1,\"alpha=0 beta=1\",\"l\");\n",
"legend2->AddEntry(f2,\"alpha=0 beta=2\",\"l\");\n",
"legend2->AddEntry(f3,\"alpha=2 beta=1\",\"l\");\n",
"legend2->AddEntry(f4,\"alpha=2 beta=2\",\"l\");\n",
"legend2->Draw();\n",
"c1->cd();"
]
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"source": [
"Draw all canvases "
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"gROOT->GetListOfCanvases()->Draw()"
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