doc/v624/Background__compton_8C.html

void Background_compton() {

   Int_t i;

   const Int_t nbins = 256;

   Double_t xmin     = 0;

   Double_t xmax     = nbins;

   Double_t source[nbins];

   gROOT->ForceStyle();


   TH1F *d1 = new TH1F("d1","",nbins,xmin,xmax);


   TString dir  = gROOT->GetTutorialDir();

   TString file = dir+"/spectrum/TSpectrum.root";

   TFile *f     = new TFile(file.Data());

   TH1F *back = (TH1F*) f->Get("back3");

   back->SetTitle("Estimation of background with Compton edges under peaks");

   back->GetXaxis()->SetRange(1,nbins);

   back->Draw("L");


   TSpectrum *s = new TSpectrum();


   for (i = 0; i < nbins; i++) source[i]=back->GetBinContent(i + 1);

   s->Background(source,nbins,10,TSpectrum::kBackDecreasingWindow,

                 TSpectrum::kBackOrder8,kTRUE,

                 TSpectrum::kBackSmoothing5,kTRUE);

   for (i = 0; i < nbins; i++) d1->SetBinContent(i + 1,source[i]);

   d1->SetLineColor(kRed);

   d1->Draw("SAME L");

}

f
#define f(i)
Definition RSha256.hxx:104

Int_t
int Int_t
Definition RtypesCore.h:45

Double_t
double Double_t
Definition RtypesCore.h:59

kTRUE
const Bool_t kTRUE
Definition RtypesCore.h:91

kRed
@ kRed
Definition Rtypes.h:66

xmin
float xmin
Definition THbookFile.cxx:95

xmax
float xmax
Definition THbookFile.cxx:95

gROOT
#define gROOT
Definition TROOT.h:406

TAttLine::SetLineColor
virtual void SetLineColor(Color_t lcolor)
Set the line color.
Definition TAttLine.h:40

TAxis::SetRange
virtual void SetRange(Int_t first=0, Int_t last=0)
Set the viewing range for the axis using bin numbers.
Definition TAxis.cxx:920

TFile
A ROOT file is a suite of consecutive data records (TKey instances) with a well defined format.
Definition TFile.h:54

TH1F
1-D histogram with a float per channel (see TH1 documentation)}
Definition TH1.h:575

TH1::SetTitle
virtual void SetTitle(const char *title)
See GetStatOverflows for more information.
Definition TH1.cxx:6678

TH1::GetXaxis
TAxis * GetXaxis()
Get the behaviour adopted by the object about the statoverflows. See EStatOverflows for more informat...
Definition TH1.h:320

TH1::SetBinContent
virtual void SetBinContent(Int_t bin, Double_t content)
Set bin content see convention for numbering bins in TH1::GetBin In case the bin number is greater th...
Definition TH1.cxx:9062

TH1::Draw
virtual void Draw(Option_t *option="")
Draw this histogram with options.
Definition TH1.cxx:3073

TH1::GetBinContent
virtual Double_t GetBinContent(Int_t bin) const
Return content of bin number bin.
Definition TH1.cxx:4993

TSpectrum
Advanced Spectra Processing.
Definition TSpectrum.h:18

TSpectrum::kBackOrder8
@ kBackOrder8
Definition TSpectrum.h:40

TSpectrum::kBackDecreasingWindow
@ kBackDecreasingWindow
Definition TSpectrum.h:42

TSpectrum::kBackSmoothing5
@ kBackSmoothing5
Definition TSpectrum.h:44

TSpectrum::Background
virtual TH1 * Background(const TH1 *hist, Int_t niter=20, Option_t *option="")
One-dimensional background estimation function.
Definition TSpectrum.cxx:153

TString
Basic string class.
Definition TString.h:136

file
Definition file.py:1