#include "TCanvas.h"
#include "TLegend.h"
#include "TMath.h"
+#include "TF1.h"
+#include "TF2.h"
#include "TH1F.h"
#include "TH2F.h"
#include "TH3F.h"
using namespace std;
-// -----------------------------------------------------------------------
-TObjArray* AliHistToolsDiHadronPID::CreateSpectraComparison(const char* name,
- const char* title, TH1F* h1, TH1F* h2, Int_t markerstyle, Bool_t logy) {
-
- // - Creates a window comparing two histograms h1, and h2.
- // - Returns an array of pointers to the objects created
- // in this function.
-
- //Int_t optstat = gStyle->GetOptStat();
- gStyle->SetOptStat(0);
- //c->UseCurrentStyle();
- //gStyle->SetOptStat(optstat);
-
- TH1F* spectra[2];
- TH1F* division;
- Int_t spectracolor[2] = {1,2};
- Int_t divisioncolor = 4;
-
- // Cloning and configuring spectra.
- spectra[0] = (TH1F*)h1->Clone();
- //spectra[0]->SetDirectory(0);
- spectra[1] = (TH1F*)h2->Clone();
- //spactra[1]->SetDirectory(0);
- for (Int_t iSpectra = 0; iSpectra < 2; iSpectra++) {
- spectra[iSpectra]->Sumw2();
- spectra[iSpectra]->SetMarkerStyle(markerstyle);
- spectra[iSpectra]->SetLineColor(spectracolor[iSpectra]);
- spectra[iSpectra]->SetMarkerColor(spectracolor[iSpectra]);
- }
-
- // Creating the division.
- division = (TH1F*)spectra[0]->Clone("hDivision");
- division->Divide(spectra[1]);
- division->SetLineColor(divisioncolor);
- division->SetMarkerColor(divisioncolor);
- division->GetYaxis()->SetTitle("Ratio");
-
- // Creating window
- //TCanvas* c = new TCanvas(name,title,0,0,400,400);
- TCanvas* c = TCanvas::MakeDefCanvas();
- c->SetName(name);
- c->SetTitle(title);
- TPad* p1 = new TPad("p1","pad1",0,0.25,1,1);
- p1->SetRightMargin(0.05);
- p1->SetBottomMargin(0.);
- TPad* p2 = new TPad("p2","pad2",0,0,1,0.25);
- p2->SetTopMargin(0.);
- p2->SetRightMargin(0.05);
- p2->SetBottomMargin(0.3);
- p2->SetFillStyle(4000);
- p1->Draw();
- p2->Draw();
-
- // Determining plotting range.
- Double_t max = TMath::Max(spectra[0]->GetMaximum(),spectra[1]->GetMaximum());
- Double_t min = TMath::Min(spectra[0]->GetMinimum(),spectra[1]->GetMinimum());
- Double_t range = max-min;
- spectra[0]->SetMinimum(min-0.05*range);
- spectra[0]->SetMaximum(max+0.05*range);
-
- // Drawing
- p1->cd();
- if (logy) {p1->SetLogy();}
- spectra[0]->Draw("e");
- spectra[0]->GetXaxis()->SetLabelSize(0);
- spectra[0]->GetYaxis()->SetLabelSize(0.05);
- spectra[0]->GetYaxis()->SetTitleSize(0.05);
- spectra[0]->GetYaxis()->SetTitleOffset(1.1);
- //Double_t labelsize = spectra[0]->GetYaxis()->GetLabelSize();
- spectra[1]->Draw("same e");
- p2->cd();
- division->SetTitle("");
- division->GetXaxis()->SetLabelSize(0.1);
- division->GetXaxis()->SetTitleSize(0.15);
- division->GetXaxis()->SetTitleOffset(0.6);
- division->GetYaxis()->SetLabelSize(0.1);
- division->GetYaxis()->SetTitleSize(0.12);
- division->GetYaxis()->SetTitleOffset(0.3);
- division->Draw("e");
-
- //c->UseCurrentStyle();
-
- //gStyle->SetOptStat(optstat);
-
- TLegend* legend = new TLegend(0.75,0.8,0.95,0.95);
- legend->AddEntry(spectra[0],h1->GetTitle(),"lpe");
- legend->AddEntry(spectra[1],h2->GetTitle(),"lpe");
- p1->cd();
- legend->Draw("same");
-
- // returning the created objects.
- TObjArray* returnobjects = new TObjArray(6);
- returnobjects->AddLast(c);
- returnobjects->AddLast(p1);
- returnobjects->AddLast(p2);
- returnobjects->AddLast(spectra[0]);
- returnobjects->AddLast(spectra[1]);
- returnobjects->AddLast(division);
-
- return returnobjects;
-
-}
-
// -----------------------------------------------------------------------
TH1F* AliHistToolsDiHadronPID::RebinVariableBinning(
- TH1F* histIn, Double_t* binsx, Int_t Nbinsx, Bool_t density) {
+ const TH1F* histIn, const Double_t* binsx, const Int_t Nbinsx, const Bool_t density) {
// Rebins a histogram (hin) with a variable binning to a histogram
// with another variable binning (binsx). If the "density" flag is set,
}
// -----------------------------------------------------------------------
-TH1F* AliHistToolsDiHadronPID::TrimHisto(TH1F* histo, Int_t firstbin, Int_t lastbin) {
+TH1F* AliHistToolsDiHadronPID::RebinVariableBinning(const TH1F* histIn, const TH1F* histAxis, const Bool_t density) {
+
+ // Rebins histogram histIn to the x-axis of histAxis
+ TAxis* xaxis = histAxis->GetXaxis();
+ Int_t nbinsx = xaxis->GetNbins();
+ const Double_t* binsx = (xaxis->GetXbins())->GetArray();
+ return RebinVariableBinning(histIn, const_cast<Double_t*>(binsx), nbinsx, density);
+
+}
+
+// -----------------------------------------------------------------------
+TH1F* AliHistToolsDiHadronPID::TrimHisto(const TH1F* histo, const Int_t firstbin, const Int_t lastbin) {
const char* name = histo->GetName();
const char* title = histo->GetTitle();
return hout;
}
+
+// -----------------------------------------------------------------------
+void AliHistToolsDiHadronPID::ConstMinusHist(TH1F* histo, const Float_t cc) {
+
+ // h -> (c-h)
+ Int_t nbins = histo->GetNbinsX();
+ for (Int_t iBin = 0; iBin < (nbins + 1); iBin++) {
+ Float_t bincontent = histo->GetBinContent(iBin);
+ histo->SetBinContent(iBin,(cc - bincontent));
+ }
+
+}
+
+// -----------------------------------------------------------------------
+TH3F* AliHistToolsDiHadronPID::MakeHist3D(const char* name, const char* title,
+ const Int_t nbinsX, const Double_t minX, const Double_t maxX,
+ const Int_t nbinsY, const Double_t minY, const Double_t maxY,
+ const Int_t nbinsZ, const Double_t* zaxis) {
+
+ const Double_t* xaxis = const_cast<Double_t*>(CreateAxis(nbinsX,minX,maxX));
+ const Double_t* yaxis = const_cast<Double_t*>(CreateAxis(nbinsY,minY,maxY));
+
+ TH3F* hout = new TH3F(name,title,nbinsX,xaxis,nbinsY,yaxis,nbinsZ,zaxis);
+
+ return hout;
+
+}
+
+// -----------------------------------------------------------------------
+TH2F* AliHistToolsDiHadronPID::Function2DToHist2D(const TF2* function, const TH2* grid) {
+
+ // Creates a 2D histogram of "function" using the binning of
+ // the histogram "grid".
+ // - We assume "grid" to have fixed binwidth.
+ // - Bins are only filled if they are within the domain of the function.
+ // - Histogram takes over the color of the function.
+
+ // Gathering info about the axes.
+ TAxis* Xaxis = grid->GetXaxis();
+ Int_t NbinsX = Xaxis->GetNbins();
+ TAxis* Yaxis = grid->GetYaxis();
+ Int_t NbinsY = Yaxis->GetNbins();
+
+ // Determining function range.
+ Double_t Xmin = 0.;
+ Double_t Xmax = 0.;
+ Double_t Ymin = 0.;
+ Double_t Ymax = 0.;
+ function->GetRange(Xmin, Ymin, Xmax, Ymax);
+
+ // Creating the histogram.
+ TH2F* hout = new TH2F(Form("%s_hist", function->GetName()),
+ Form("%s (Hist);%s;%s", function->GetTitle(), Xaxis->GetTitle(), Yaxis->GetTitle()),
+ NbinsX, Xaxis->GetBinLowEdge(1), Xaxis->GetBinUpEdge(NbinsX),
+ NbinsY, Yaxis->GetBinLowEdge(1), Yaxis->GetBinUpEdge(NbinsY));
+ hout->SetLineColor(function->GetLineColor());
+ hout->SetMarkerColor(function->GetLineColor());
+ hout->SetDirectory(0);
+
+ // Filling the histogram.
+ for (Int_t iBinX = 1; iBinX < (NbinsX + 1); iBinX++) {
+ for (Int_t iBinY = 1; iBinY < (NbinsY + 1); iBinY++) {
+ Double_t CoordX = Xaxis->GetBinCenter(iBinX);
+ Double_t CoordY = Yaxis->GetBinCenter(iBinY);
+
+ if ( (CoordX < Xmin) || (CoordX > Xmax) || (CoordY < Ymin) || (CoordY > Ymax) ) {continue;}
+
+ hout->SetBinContent(iBinX, iBinY, function->Eval(CoordX, CoordY));
+ }
+ }
+
+ return hout;
+
+}
+
+// -----------------------------------------------------------------------
+TObjArray* AliHistToolsDiHadronPID::CreateSpectraComparison(const char* name,
+ const char* title, const TH1F* h1, const TH1F* h2, const Int_t markerstyle, const Bool_t logy) {
+
+ // - Creates a window comparing two histograms h1, and h2.
+ // - Returns an array of pointers to the objects created
+ // in this function.
+
+ //Int_t optstat = gStyle->GetOptStat();
+ gStyle->SetOptStat(0);
+ //c->UseCurrentStyle();
+ //gStyle->SetOptStat(optstat);
+
+ TH1F* spectra[2];
+ TH1F* division;
+ Int_t spectracolor[2] = {1,2};
+ Int_t divisioncolor = 4;
+
+ // Cloning and configuring spectra.
+ spectra[0] = (TH1F*)h1->Clone();
+ //spectra[0]->SetDirectory(0);
+ spectra[1] = (TH1F*)h2->Clone();
+ //spactra[1]->SetDirectory(0);
+ for (Int_t iSpectra = 0; iSpectra < 2; iSpectra++) {
+ spectra[iSpectra]->Sumw2();
+ spectra[iSpectra]->SetMarkerStyle(markerstyle);
+ spectra[iSpectra]->SetLineColor(spectracolor[iSpectra]);
+ spectra[iSpectra]->SetMarkerColor(spectracolor[iSpectra]);
+ }
+
+ // Creating the division.
+ division = (TH1F*)spectra[0]->Clone("hDivision");
+ division->Divide(spectra[1]);
+ division->SetLineColor(divisioncolor);
+ division->SetMarkerColor(divisioncolor);
+ division->GetYaxis()->SetTitle("Ratio");
+
+ // Creating window
+ //TCanvas* c = new TCanvas(name,title,0,0,400,400);
+ TCanvas* c = TCanvas::MakeDefCanvas();
+ c->SetName(name);
+ c->SetTitle(title);
+ TPad* p1 = new TPad("p1","pad1",0,0.25,1,1);
+ p1->SetRightMargin(0.05);
+ p1->SetBottomMargin(0.);
+ TPad* p2 = new TPad("p2","pad2",0,0,1,0.25);
+ p2->SetTopMargin(0.);
+ p2->SetRightMargin(0.05);
+ p2->SetBottomMargin(0.3);
+ p2->SetFillStyle(4000);
+ p1->Draw();
+ p2->Draw();
+
+ // Determining plotting range.
+ Double_t max = TMath::Max(spectra[0]->GetMaximum(),spectra[1]->GetMaximum());
+ Double_t min = TMath::Min(spectra[0]->GetMinimum(),spectra[1]->GetMinimum());
+ Double_t range = max-min;
+ spectra[0]->SetMinimum(min-0.05*range);
+ spectra[0]->SetMaximum(max+0.05*range);
+
+ // Drawing
+ p1->cd();
+ if (logy) {p1->SetLogy();}
+ spectra[0]->Draw("e");
+ spectra[0]->GetXaxis()->SetLabelSize(0);
+ spectra[0]->GetYaxis()->SetLabelSize(0.05);
+ spectra[0]->GetYaxis()->SetTitleSize(0.05);
+ spectra[0]->GetYaxis()->SetTitleOffset(1.1);
+ //Double_t labelsize = spectra[0]->GetYaxis()->GetLabelSize();
+ spectra[1]->Draw("same e");
+ p2->cd();
+ division->SetTitle("");
+ division->GetXaxis()->SetLabelSize(0.1);
+ division->GetXaxis()->SetTitleSize(0.15);
+ division->GetXaxis()->SetTitleOffset(0.6);
+ division->GetYaxis()->SetLabelSize(0.1);
+ division->GetYaxis()->SetTitleSize(0.12);
+ division->GetYaxis()->SetTitleOffset(0.3);
+ division->Draw("e");
+
+ //c->UseCurrentStyle();
+
+ //gStyle->SetOptStat(optstat);
+
+ TLegend* legend = new TLegend(0.75,0.8,0.95,0.95);
+ legend->AddEntry(spectra[0],h1->GetTitle(),"lpe");
+ legend->AddEntry(spectra[1],h2->GetTitle(),"lpe");
+ p1->cd();
+ legend->Draw("same");
+
+ // returning the created objects.
+ TObjArray* returnobjects = new TObjArray(6);
+ returnobjects->AddLast(c);
+ returnobjects->AddLast(p1);
+ returnobjects->AddLast(p2);
+ returnobjects->AddLast(spectra[0]);
+ returnobjects->AddLast(spectra[1]);
+ returnobjects->AddLast(division);
+
+ return returnobjects;
+
+}
+
+// -----------------------------------------------------------------------
+Double_t* AliHistToolsDiHadronPID::CreateAxis(const Int_t nbins, const Double_t min, const Double_t max) {
+
+ if (nbins <= 0) return 0x0;
+ if (max < min) return 0x0;
+
+ Double_t* axis = new Double_t[nbins + 1];
+ Double_t binsize = (max - min)/((Double_t)nbins);
+ for (Int_t iBin = 0; iBin < nbins + 1; iBin++) {
+ axis[iBin] = min + ((Double_t)iBin) * binsize;
+ }
+
+ return axis;
+}
+
+
+
+
+
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff