{
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"metadata": {},
"source": [
"# hist062_TH1_timeonaxis2\n",
"\n",
"\n",
"\n",
"\n",
"**Author:** 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."
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "85b1897e",
"metadata": {
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"execution": {
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"source": [
"auto ct2 = new TCanvas(\"ct2\", \"ct2\", 10, 10, 700, 500);\n",
"\n",
"TDatime T0(2003, 1, 1, 0, 0, 0);\n",
"int X0 = T0.Convert();\n",
"gStyle->SetTimeOffset(X0);"
]
},
{
"cell_type": "markdown",
"id": "26d94d56",
"metadata": {},
"source": [
"Define the lowest histogram limit as 2002, September 23rd"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "0a4ccf2a",
"metadata": {
"collapsed": false,
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"shell.execute_reply": "2026-05-19T20:13:13.338284Z"
}
},
"outputs": [],
"source": [
"TDatime T1(2002, 9, 23, 0, 0, 0);\n",
"int X1 = T1.Convert() - X0;"
]
},
{
"cell_type": "markdown",
"id": "c2b18a22",
"metadata": {},
"source": [
"Define the highest histogram limit as 2003, March 7th"
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "9159a2e3",
"metadata": {
"collapsed": false,
"execution": {
"iopub.execute_input": "2026-05-19T20:13:13.340997Z",
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"shell.execute_reply": "2026-05-19T20:13:13.544516Z"
}
},
"outputs": [],
"source": [
"TDatime T2(2003, 3, 7, 0, 0, 0);\n",
"int X2 = T2.Convert(1) - X0;\n",
"\n",
"auto h1 = new TH1F(\"h1\", \"test\", 100, X1, X2);\n",
"\n",
"TRandom r;\n",
"for (Int_t i = 0; i < 30000; i++) {\n",
" Double_t noise = r.Gaus(0.5 * (X1 + X2), 0.1 * (X2 - X1));\n",
" h1->Fill(noise);\n",
"}\n",
"\n",
"h1->GetXaxis()->SetTimeDisplay(1);\n",
"h1->GetXaxis()->SetLabelSize(0.03);\n",
"h1->GetXaxis()->SetTimeFormat(\"%Y/%m/%d\");\n",
"h1->Draw();"
]
},
{
"cell_type": "markdown",
"id": "008c2fcb",
"metadata": {},
"source": [
"Draw all canvases "
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "6508b92b",
"metadata": {
"collapsed": false,
"execution": {
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"shell.execute_reply": "2026-05-19T20:13:13.750522Z"
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},
"outputs": [
{
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],
"source": [
"gROOT->GetListOfCanvases()->Draw()"
]
}
],
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