{ "cells": [ { "cell_type": "markdown", "id": "ac935bd2", "metadata": {}, "source": [ "# pdf013_Vavilov\n", "Test of the TMath::Vavilov distribution\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 08:27 PM." ] }, { "cell_type": "code", "execution_count": 1, "id": "8c63b426", "metadata": { "collapsed": false, "execution": { "iopub.execute_input": "2026-05-19T20:27:03.354236Z", "iopub.status.busy": "2026-05-19T20:27:03.354126Z", "iopub.status.idle": "2026-05-19T20:27:03.823874Z", "shell.execute_reply": "2026-05-19T20:27:03.823237Z" } }, "outputs": [], "source": [ "Int_t n = 1000;\n", "Double_t *xvalues = new Double_t[n];\n", "Double_t *yvalues1 = new Double_t[n];\n", "Double_t *yvalues2 = new Double_t[n];\n", "Double_t *yvalues3 = new Double_t[n];\n", "Double_t *yvalues4 = new Double_t[n];\n", "\n", "TRandom r;\n", "for (Int_t i=0; iSetGrid();\n", "c1->SetHighLightColor(19);\n", "TGraph *gr1 = new TGraph(n, xvalues, yvalues1);\n", "TGraph *gr2 = new TGraph(n, xvalues, yvalues2);\n", "TGraph *gr3 = new TGraph(n, xvalues, yvalues3);\n", "TGraph *gr4 = new TGraph(n, xvalues, yvalues4);\n", "gr1->SetTitle(\"TMath::Vavilov density\");\n", "gr1->Draw(\"ap\");\n", "gr2->Draw(\"psame\");\n", "gr2->SetMarkerColor(kRed);\n", "gr3->Draw(\"psame\");\n", "gr3->SetMarkerColor(kBlue);\n", "gr4->Draw(\"psame\");\n", "gr4->SetMarkerColor(kGreen);\n", "\n", "TF1 *f1 = new TF1(\"f1\", \"TMath::Vavilov(x, 0.3, 0.5)\", -2, 10);\n", "\n", "TH1F *hist = new TH1F(\"vavilov\", \"vavilov\", 100, -2, 10);\n", "for (int i=0; i<10000; i++) {\n", " hist->Fill(f1->GetRandom());\n", "}\n", "hist->Scale(1/1200.);\n", "hist->Draw(\"same\");" ] }, { "cell_type": "markdown", "id": "c173a788", "metadata": {}, "source": [ "Draw all canvases " ] }, { "cell_type": "code", "execution_count": 2, "id": "faeb0e9f", "metadata": { "collapsed": false, "execution": { "iopub.execute_input": "2026-05-19T20:27:03.826267Z", "iopub.status.busy": "2026-05-19T20:27:03.826145Z", "iopub.status.idle": "2026-05-19T20:27:04.033345Z", "shell.execute_reply": "2026-05-19T20:27:04.032497Z" } }, "outputs": [ { "data": { "text/html": [ "\n", "\n", "
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