#include "Riostream.h"
#include "TFile.h"
#include "TH1.h"
#include "TNtuple.h"
#include "TF1.h"
#include "TSpectrum.h"
void cleanback()
{
TGraph *g = new TGraph("eu_gu_1.txt");
TSpectrum *s = new TSpectrum();
s->Background(g->GetY(), g->GetN(),
              10, TSpectrum::kBackDecreasingWindow,
              TSpectrum::kBackOrder8, kTRUE,
              TSpectrum::kBackSmoothing5, kTRUE);
g->Draw("AL");
}