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yilmaz |
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#include <fstream>
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#include <iostream>
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#include <sstream>
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#include "TGraphErrors.h"
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#include "TFile.h"
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using namespace std;
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void parseText(const char* inname = "newraddam180633.txt"){
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double x[100];
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double ex[100];
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double y1[100];
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double e1[100];
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double y2[100];
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double e2[100];
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int i = 0;
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std::ifstream inputText(inname);
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std::string line;
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while( std::getline( inputText, line)){
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std::istringstream linestream(line);
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linestream>>x[i]>>y1[i]>>e1[i]>>y2[i]>>e2[i];
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ex[i] = 0;
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i++;
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}
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TFile* outf = new TFile("nothing.root","recreate");
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TGraphErrors* g = new TGraphErrors(i,x,y2,ex,e2);
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g->SetMarkerStyle(20);
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g->Draw("Ap");
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g->SetName("g2");
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g->Write();
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}
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