Hello
This file given below is the file for read an “asc” file named foo.asc. But I need 2D histogram. One axis contains foo.asc data and the other contain, say, foo2.asc. Is there a way to do this?
Best wishes,
Serkan
#include
#include
// #include
#include “TH1.h”
void readasc()
{
vector<Float_t> dat;
ifstream in;
in.open(“foo.asc”);
//read file
while( in.good() )
{
Double_t num;
in >> num;
// std::cout << “in.fail():” << in.fail() << “; num=” << num << std::endl;
if( in.fail() )
break;
dat.push_back(num);
}
// fill histo
Int_t numbins = dat.size();
TH1F* h = new TH1F(“h1”,“h1”, numbins, 0, numbins );
for ( Int_t i=0; i != numbins; ++i )
{
h->SetBinContent( i+1, dat.at(i) );
h->SetEntries( h->GetEntries()+i );
}
//draw histo
h->Draw();
}
foo.asc.tar.gz (146 Bytes)