{
"cells": [
{
"cell_type": "markdown",
"id": "7ebe3b2a",
"metadata": {},
"source": [
"# gr112_reverse_graph_and_errors\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 08:38 PM."
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "f2926319",
"metadata": {
"collapsed": false,
"execution": {
"iopub.execute_input": "2026-05-19T20:38:28.468915Z",
"iopub.status.busy": "2026-05-19T20:38:28.468802Z",
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"shell.execute_reply": "2026-05-19T20:38:28.816298Z"
}
},
"outputs": [],
"source": [
"auto c = new TCanvas(\"c\",\"Reversed graphs\",0,0,900,900);\n",
"c->Divide(3,3);"
]
},
{
"cell_type": "markdown",
"id": "f367b986",
"metadata": {},
"source": [
"TGraphErrors (first row example)"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "5191d3dd",
"metadata": {
"collapsed": false,
"execution": {
"iopub.execute_input": "2026-05-19T20:38:28.818996Z",
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"iopub.status.idle": "2026-05-19T20:38:29.026342Z",
"shell.execute_reply": "2026-05-19T20:38:29.025695Z"
}
},
"outputs": [],
"source": [
"auto graphe = new TGraphErrors();\n",
"graphe->GetXaxis()->SetNdivisions(514);\n",
"graphe->GetYaxis()->SetNdivisions(514);\n",
"graphe->SetMarkerStyle(kCircle);\n",
"graphe->SetPoint(0,5,5);\n",
"graphe->SetPointError(0,1,3);\n",
"graphe->SetPoint(1,9,9);\n",
"graphe->SetPointError(1,1,3);\n",
"\n",
"c->cd(1);\n",
"gPad->SetGrid();\n",
"graphe->Draw(\"a pl \"); //Plot with axis (\"a\") and line+points (\"pl\")\n",
"\n",
"c->cd(2);\n",
"gPad->SetGrid();\n",
"graphe->Draw(\"a pl rx ry \"); //Plot with axis (\"a\") and line+points (\"pl\") with reverse X and Y axes\n",
"\n",
"c->cd(3);\n",
"gPad->SetGrid();\n",
"gPad->SetLogx();\n",
"gPad->SetLogy();\n",
"graphe->GetXaxis()->SetMoreLogLabels();\n",
"graphe->GetYaxis()->SetMoreLogLabels();\n",
"graphe->Draw(\"a pl rx ry\"); //Plot with reverse axis and log scale"
]
},
{
"cell_type": "markdown",
"id": "1e063ad5",
"metadata": {},
"source": [
"TGraphAsymmErrors (second row example)"
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "c3144283",
"metadata": {
"collapsed": false,
"execution": {
"iopub.execute_input": "2026-05-19T20:38:29.031359Z",
"iopub.status.busy": "2026-05-19T20:38:29.031243Z",
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"shell.execute_reply": "2026-05-19T20:38:29.241644Z"
}
},
"outputs": [],
"source": [
"auto graphae = new TGraphAsymmErrors();\n",
"graphae->GetXaxis()->SetNdivisions(514);\n",
"graphae->GetYaxis()->SetNdivisions(514);\n",
"graphae->SetMarkerStyle(kCircle);\n",
"graphae->SetPoint(0,5,5);\n",
"graphae->SetPointError(0,1,3,3,1);\n",
"graphae->SetPoint(1,9,9);\n",
"graphae->SetPointError(1,1,3,1,3);\n",
"\n",
"c->cd(4);\n",
"gPad->SetGrid();\n",
"graphae->Draw(\"a pl \");\n",
"\n",
"c->cd(5);\n",
"gPad->SetGrid();\n",
"graphae->Draw(\"a pl rx ry \");\n",
"\n",
"c->cd(6);\n",
"gPad->SetGrid();\n",
"gPad->SetLogx();\n",
"gPad->SetLogy();\n",
"graphae->GetXaxis()->SetMoreLogLabels();\n",
"graphae->GetYaxis()->SetMoreLogLabels();\n",
"graphae->Draw(\"a pl rx ry\");"
]
},
{
"cell_type": "markdown",
"id": "dd5ebc6c",
"metadata": {},
"source": [
"TGraphBentErrors (third row example)"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "3b1fdbfa",
"metadata": {
"collapsed": false,
"execution": {
"iopub.execute_input": "2026-05-19T20:38:29.260759Z",
"iopub.status.busy": "2026-05-19T20:38:29.260574Z",
"iopub.status.idle": "2026-05-19T20:38:29.473364Z",
"shell.execute_reply": "2026-05-19T20:38:29.472729Z"
}
},
"outputs": [],
"source": [
"auto graphbe = new TGraphBentErrors();\n",
"graphbe->GetXaxis()->SetNdivisions(514);\n",
"graphbe->GetYaxis()->SetNdivisions(514);\n",
"graphbe->SetMarkerStyle(kCircle);\n",
"graphbe->SetPoint(0,5,5);\n",
"graphbe->SetPointError(0,1,3,3,1,.5,.2,.5,.2);\n",
"graphbe->SetPoint(1,9,9);\n",
"graphbe->SetPointError(1,1,3,1,3,-.5,-.2,-.5,-.2);\n",
"\n",
"c->cd(7);\n",
"gPad->SetGrid();\n",
"graphbe->Draw(\"a pl \");\n",
"\n",
"c->cd(8);\n",
"gPad->SetGrid();\n",
"graphbe->Draw(\"a pl rx ry \");\n",
"\n",
"c->cd(9);\n",
"gPad->SetGrid();\n",
"gPad->SetLogx();\n",
"gPad->SetLogy();\n",
"graphbe->GetXaxis()->SetMoreLogLabels();\n",
"graphbe->GetYaxis()->SetMoreLogLabels();\n",
"graphbe->Draw(\"a pl rx ry\");"
]
},
{
"cell_type": "markdown",
"id": "09e125a6",
"metadata": {},
"source": [
"Draw all canvases "
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "0535167d",
"metadata": {
"collapsed": false,
"execution": {
"iopub.execute_input": "2026-05-19T20:38:29.476288Z",
"iopub.status.busy": "2026-05-19T20:38:29.476159Z",
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"shell.execute_reply": "2026-05-19T20:38:29.710439Z"
}
},
"outputs": [
{
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"output_type": "display_data"
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],
"source": [
"gROOT->GetListOfCanvases()->Draw()"
]
}
],
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"kernelspec": {
"display_name": "ROOT C++",
"language": "c++",
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