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"# hist051_Graphics_candle_plot_stack\n",
"\n",
"\n",
"\n",
"\n",
"**Author:** Georg Troska, Olivier Couet \n",
"This notebook tutorial was automatically generated with ROOTBOOK-izer from the macro found in the ROOT repository on Tuesday, May 19, 2026 at 08:13 PM."
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"gStyle->SetTimeOffset(0);\n",
"auto rng = new TRandom();\n",
"auto dateBegin = new TDatime(2010, 1, 1, 0, 0, 0);\n",
"auto dateEnd = new TDatime(2011, 1, 1, 0, 0, 0);\n",
"int bins = 1000;\n",
"auto h1 = new TH2I(\"h1\", \"Machine A\", 6, dateBegin->Convert(), dateEnd->Convert(), bins, 0, 1000);\n",
"auto h2 = new TH2I(\"h2\", \"Machine B\", 6, dateBegin->Convert(), dateEnd->Convert(), bins, 0, 1000);\n",
"auto hsum = new TH2I(\"h4\", \"Sum\", 6, dateBegin->Convert(), dateEnd->Convert(), bins, 0, 1000);\n",
"\n",
"float Rand;\n",
"for (int i = dateBegin->Convert(); i < dateEnd->Convert(); i += 86400 * 30) {\n",
" for (int j = 0; j < 1000; j++) {\n",
" Rand = rng->Gaus(500 + sin(i / 10000000.) * 100, 50);\n",
" h1->Fill(i, Rand);\n",
" hsum->Fill(i, Rand);\n",
" Rand = rng->Gaus(500 + sin(i / 12000000.) * 100, 50);\n",
" h2->Fill(i, Rand);\n",
" hsum->Fill(i, Rand);\n",
" }\n",
"}\n",
"\n",
"h2->SetLineColor(kRed);\n",
"hsum->SetFillColor(kGreen);\n",
"TCanvas *c1 = new TCanvas();\n",
"\n",
"auto hs = new THStack(\"hs\", \"Machine A+B\");\n",
"hs->Add(h1);\n",
"hs->Add(h2, \"candle2\");\n",
"hs->Add(hsum, \"violin1\");\n",
"hs->Draw(\"candle3\");\n",
"hs->GetXaxis()->SetNdivisions(410);\n",
"\n",
"gPad->SetGrid(1, 0);\n",
"\n",
"hs->GetXaxis()->SetTimeDisplay(1);\n",
"hs->GetXaxis()->SetTimeFormat(\"%d/%m/%y\");\n",
"hs->GetXaxis()->SetNdivisions(-6);\n",
"hs->GetXaxis()->SetTitle(\"Date [day/month/year]\");\n",
"c1->Modified();\n",
"\n",
"gPad->BuildLegend(0.75, 0.75, 0.95, 0.95, \"\");"
]
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"Draw all canvases "
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"source": [
"gROOT->GetListOfCanvases()->Draw()"
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