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util_new.cc
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util_new.cc
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//#include <iostream.h>
//#include <iomanip.h>
//#include <fstream.h>
//#include <stdio.h>
//#include <Type.h>
void newcanvas(Char_t *name)
{
TCanvas *canvasname=new TCanvas(name,name,1);
canvasname->cd();
}
void browse()
{
TBrowser *b=new TBrowser();
}
void cutg(Char_t *histname,Char_t * newcutname, Int_t graphit=1, Int_t npts=0, Char_t *xvar="", Char_t *yvar="")
{
if (graphit==1) {
if (!(TCanvas *) gROOT->GetListOfCanvases()->FindObject("c1"))
TCanvas *c1=new TCanvas("c1","c1");
c1->cd();
if ((TCutG *) gROOT->GetListOfSpecials()->FindObject("CUTG"))
CUTG->Delete();
if ((TCutG *) gROOT->GetListOfSpecials()->FindObject(newcutname)) {
(TCutG *) gROOT->GetListOfSpecials()->FindObject(newcutname)->Delete();
}
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
hist2->Draw("col2");
c1->EditorBar();
cout << "Click on \"Graphical Cut\" to create cut"<<endl;
cout << "When finished don't forget to setname(\"CUTG\",\""<<newcutname<<"\")"<<endl;
}
else {
if (npts==0) {
cout << "enter number of points in graphical cut: ";
cin >> npts;
}
TCutG *newcut=new TCutG(newcutname,npts);
Double_t x,y;
for (Int_t i=0; i<npts-1; i++) {
cout <<"enter x, y for point "<<i<<", one per line:"<<endl;
cin>>x>>y;
newcut->SetPoint(i,x,y);
}
newcut->GetPoint(0,x,y);
newcut->SetPoint(npts-1,x,y);
newcut->Draw();
newcut->SetVarX(xvar);
newcut->SetVarY(yvar);
// newcut->Print();
newcut->SetName(newcutname);
}
}
void dir(void)
{
gROOT->GetListOfFiles()->Print();
}
void divide(Char_t *histin1, Char_t *histin2, Char_t *histout, Int_t ierr=0)
{
// ierr=-1: set all resultant errors to 0
// ierr=0: no recalculation of errors
// ierr=1: use statistical errors on histogram 1
// ierr=2: use statistical errors on histogram 2
// ierr=3: combine statistical errors from histograms 1 and 2
// ierr=4: use existing errors from histogram 1
// ierr=5: use existing errors from histogram 2
// ierr=6: combine existing errors from histograms 1 and 2
Float_t dy1,dy2,dy3,y1,y2,y3;
TH1F *hist1=(TH1F *) gROOT->FindObject(histin1);
TH1F *hist2=(TH1F *) gROOT->FindObject(histin2);
TH1F *hist3=(TH1F *) gROOT->FindObject(histout);
hist3->Divide(hist1,hist2);
if (ierr!=0) {
// recalculate errors assuming statistical or existing errors
for (Int_t i=0; i<hist1->GetNbinsX(); i++) {
y1 = hist1->GetBinContent(i);
y2 = hist2->GetBinContent(i);
y3 = hist3->GetBinContent(i);
dy1= hist1->GetBinError(i);
dy2= hist2->GetBinError(i);
switch (ierr) {
case -1:
dy3 = 0;
break;
case 1:
if (y1!=0) {
dy3=TMath::Sqrt(1/y1)*y3;
} else {
dy3=0;
}
break;
case 2:
if (y2 !=0) {
dy3=TMath::Sqrt(1/y2)*y3;
} else {
dy3=0.;
}
break;
case 3:
if (y1!=0 && y2 !=0) {
dy3=TMath::Sqrt(1/y1 + 1/y2)*y3;
} else if (y1!=0 && y2==0) {
dy3=TMath::Sqrt(1/y1) * y3;
} else if (y1==0 && y2 !=0) {
dy3=TMath::Sqrt(1/y2) * y3;
}
break;
case 4:
if (y1!=0) {
dy3=(dy1/y1) * y3;
} else {
dy3=0.;
}
break;
case 5:
if (y2 !=0) {
dy3=(dy2/y2) * y3;
} else {
dy3=0.;
}
break;
case 6:
// cout << i << " "<<y1<<" "<<dy1<<" "<<y2<<" "<<dy2<<" "<<y3<<endl;
if (y1!=0 && y2 !=0) {
dy3=TMath::Sqrt((dy1*dy1)/(y1*y1) + (dy2*dy2)/(y2*y2))*y3;
} else if (y1!=0 && y2==0) {
dy3=(dy1/y1) * y3;
} else if (y1==0 && y2 !=0) {
dy3=(dy2/y2) * y3;
}
break;
}
hist3->SetBinError(i,dy3);
}
hist3->Draw("E");
} else {
hist3->Draw("HIST");
}
}
void draw(Char_t *histname,Char_t *dopt="",Float_t xmin=-999999.,Float_t xmax=999999.)
{
Int_t minbin,maxbin;
Int_t lowbin,highbin;
Float_t xlow,xhigh;
TH1F *hist1=(TH1F *) gROOT->FindObject(histname);
lowbin=hist1->GetXaxis()->GetFirst();
highbin=hist1->GetXaxis()->GetLast();
if (xmin==-999999. && xmax==999999.) {
hist1->GetXaxis()->UnZoom();//added
hist1->GetXaxis()->SetRange(lowbin,highbin);
} else if (xmax==999999. && xmin !=-999999.) {
minbin=hist1->FindBin(xmin);
hist1->GetXaxis()->SetRange(minbin,highbin);
} else {
minbin=hist1->FindBin(xmin);
maxbin=hist1->FindBin(xmax);
hist1->GetXaxis()->SetRange(minbin,maxbin);
}
hist1->Draw(dopt);
}
void draw2(Char_t *histname,Float_t xmin=-999999.,Float_t xmax=999999.,
Float_t ymin=-999999.,Float_t ymax=999999.)
{
Int_t minxbin,maxxbin;
Int_t lowxbin,highxbin;
Float_t xlow,xhigh;
Int_t minybin,maxybin;
Int_t lowybin,highybin;
Float_t ylow,yhigh;
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
lowxbin=hist2->GetXaxis()->GetFirst();
highxbin=hist2->GetXaxis()->GetLast();
lowybin=hist2->GetYaxis()->GetFirst();
highybin=hist2->GetYaxis()->GetLast();
if (xmin==-999999. && xmax==999999.) {
hist2->GetXaxis()->UnZoom();//added
hist2->GetXaxis()->SetRange(lowxbin,highxbin);
} else if (xmax==999999. && xmin !=-999999.) {
minxbin=hist2->GetXaxis()->FindBin(xmin);
hist2->GetXaxis()->SetRange(minxbin,highxbin);
} else {
minxbin=hist2->GetXaxis()->FindBin(xmin);
maxxbin=hist2->GetXaxis()->FindBin(xmax);
hist2->GetXaxis()->SetRange(minxbin,maxxbin);
}
if (ymin==-999999. && ymax==999999.) {
hist2->GetYaxis()->UnZoom();//added
hist2->GetYaxis()->SetRange(lowybin,highybin);
} else if (ymax==999999. && ymin !=-999999.) {
minybin=hist2->GetYaxis()->FindBin(ymin);
hist2->GetYaxis()->SetRange(minybin,highybin);
} else {
minybin=hist2->GetYaxis()->FindBin(ymin);
maxybin=hist2->GetYaxis()->FindBin(ymax);
hist2->GetYaxis()->SetRange(minybin,maxybin);
}
hist2->Draw("col2");
}
void drawline(Char_t *filename, Char_t *linename="gline",Bool_t showpoints=1,Int_t linestyle=1,Int_t linewidth=1)
{//new
//Int_t maxpoints=100;//not used
Int_t point=0;
Float_t x,y;
//Int_t npts=0;//not used
TGraph *graph = new TGraph(2);
graph->SetName(linename);
graph->SetTitle(linename);
graph->SetFillColor(1);
graph->SetLineStyle(linestyle);
graph->SetLineWidth(linewidth);
ifstream infile(filename);
while (infile >> x) {
infile>>y;
graph->SetPoint(point,x,y);
if(showpoints)
cout<<"reading point "<<point<<endl;
point++;
}
// point=point/2;
cout<<"points = "<<point<<endl;
/* for (Int_t i=point; i<100; i++) {
graph->RemovePoint(i);
npts=graph->GetN();
cout<<"removed point "<<i<<" npoints = "<<npts<<endl;
}
*/
if(showpoints)
graph->Print();
// cout<<"number of points= "<<npts<<endl;
graph->Draw("l");
}
void dump(Char_t *histname, Char_t *filename, Int_t ierr=0, Int_t zsupp=1)
{
// gDirectory->pwd();
Int_t whatsit=0;
whatsit=whatis(histname);
switch(whatsit) {
case 1:
TH1F *hist1=(TH1F *) gROOT->FindObject(histname);
break;
case 2:
TH1D *hist1=(TH1D *) gROOT->FindObject(histname);
break;
case 3:
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
break;
case 4:
TH2D *hist2=(TH2D *) gROOT->FindObject(histname);
break;
case 5:
TH3F *hist3=(TH3F *) gROOT->FindObject(histname);
break;
case 6:
TProfile *hist1=(TProfile *) gROOT->FindObject(histname);
break;
}
ofstream outfile(filename);
if (whatsit==1 || whatsit==2 || whatsit==6) {//1D object
for (Int_t ibin=0; ibin < hist1->GetNbinsX()+1;ibin++) {//includes underflow bin
if (ierr==0) {
if ((zsupp==1 && hist1->GetBinContent(ibin)!=0) ||
zsupp==0) {
outfile<< hist1->GetBinCenter(ibin) << " " <<
hist1->GetBinContent(ibin)<<endl;
}
} else {
if ((zsupp==1 && hist1->GetBinContent(ibin)!=0) ||
zsupp==0) {
outfile<<hist1->GetBinCenter(ibin)<<" "<<
hist1->GetBinContent(ibin)<<" "<<
hist1->GetBinError(ibin)<<endl;
}
}
}
}
if (whatsit==3 || whatsit==4) {//2D object
for (Int_t ixbin=0; ixbin < hist2->GetNbinsX();ixbin++) {
for (Int_t iybin=0; iybin<hist2->GetNbinsY();iybin++) {
Float_t content=hist2->GetBinContent(ixbin,iybin);
Float_t xbin=hist2->GetXaxis()->GetBinCenter(ixbin);
Float_t ybin=hist2->GetYaxis()->GetBinCenter(iybin);
if (ierr==0) {
if ((zsupp==1 && content!=0) ||
zsupp==0) {
outfile<< xbin << " " << ybin <<" "<<content<<endl;
}
} else {
if ((zsupp==1 && content!=0) ||
zsupp==0) {
outfile<<xbin<<" "<< ybin<<" "<<content<<endl;
}
}
}
}
}
outfile.close();
}
void fillhist0(Char_t *filename, Char_t *histname)
{
Float_t x;
TH1F *hist1=(TH1F *) gROOT->FindObject(histname);
hist1->Reset();
ifstream infile(filename);
while (infile >> x) {
hist1->Fill(x);
}
hist1->Draw();
}
void fillhist(Char_t *filename, Char_t *histname, Int_t opt1=0, Int_t ierr=0)
{
// if opt1=0 use x as channel to fill, else use bin number
// if ierr=1 also read in errors and set bin errors
Float_t x,y,dy,xval;
Int_t xbin=1;
TH1F *hist1=(TH1F *) gROOT->FindObject(histname);
hist1->Reset();
ifstream infile(filename);
switch (ierr) {
case 0:
while (infile >> x) {
infile >> y;
xval=x;
if (opt1==1) {xval=(Float_t) xbin;}
hist1->Fill(xval,y);
xbin++;
}
hist1->Draw();
break;
case 1:
while (infile >> x) {
infile>>y;
infile>>dy;
xval=x;
if (opt1==1) {xval=(Float_t) xbin;}
hist1->Fill(xval,y);
hist1->SetBinError(xbin,dy);
xbin++;
}
hist1->Draw("E");
break;
}
}
void fillhist2(Char_t *filename,Char_t *histname)
{
Float_t x,y,z;
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
hist2->Reset();
ifstream infile(filename);
while (infile >> x) {
infile >> y;
infile >> z;
hist2->Fill(x,y,z);
}
hist2->Draw("col2");
}
void fillgraph(Char_t *filename, Char_t *graphname, Int_t npts, Int_t ierr=0)
{
gr=new TGraphErrors(npts);
Double_t x,y,dx,dy;
ifstream infile(filename);
Int_t i=0;
while (infile >> x) {
infile >> y;
infile >> dy;
gr->SetPoint(i,x,y);
gr->SetPointError(i,dx,dy);
i++;
}
gr->SetName(graphname);
gr->SetTitle("graph test");
gr->SetMarkerColor(4);
gr->SetMarkerStyle(21);
gr->Draw("AP");
}
void getfile(Char_t *filename)
{
TFile *f=new TFile(filename);
}
void setdef(Char_t *dirname)
{
gDirectory->cd(dirname);
cout << "Current directory is " <<gDirectory->pwd()<<endl;
}
void h1(Char_t *histname, Char_t *title, Int_t nchan=100,Float_t low=0,Float_t high=100)
{
TH1F *newhist=new TH1F(histname,title,nchan,low,high);
newhist->SetName(histname);
}
void h2(Char_t *histname, Char_t *title, Int_t nxchan=100,Float_t lowx=0,Float_t highx=100,
Int_t nychan=100,Float_t lowy=0,Float_t highy=100)
{
TH2F *newhist=new TH2F(histname,title,nxchan,lowx,highx,nychan,lowy,highy);
newhist->SetName(histname);
}
void h3(Char_t *histname, Char_t *title, Int_t nxchan=100,Float_t lowx=0,Float_t highx=100,
Int_t nychan,Float_t lowy=0,Float_t highy=100, Int_t nzchan=100,
Float_t lowz=0, Float_t highz=100)
{
TH3F *newhist=new TH3F(histname,title,nxchan,lowx,highx,nychan,lowy,highy,
nzchan,lowz,highz);
newhist->SetName(histname);
}
void listall(Int_t option=0)
{
switch (option) {
case 0:
cout << endl<<"All histograms in memory:"<<endl<<endl;
gDirectory->GetList()->ls();
cout << endl<<"All Special objects in memory:"<<endl<<endl;;
gROOT->GetListOfSpecials()->ls();
cout << endl<<"All Canvases in memory:"<<endl<<endl;
gROOT->GetListOfCanvases()->ls();
break;
case 1:
cout << endl<<"All histograms in memory:"<<endl<<endl;
gDirectory->GetList()->ls();
break;
case 2:
cout << endl<<"All Special objects in memory:"<<endl<<endl;;
gROOT->GetListOfSpecials()->ls();
break;
case 3:
cout << endl<<"All Canvases in memory:"<<endl<<endl;
gROOT->GetListOfCanvases()->ls();
break;
}
}
void pj3x(Char_t *histname, Float_t ylow=-999999., Float_t yhi=999999., Float_t zlow=-999999., Float_t zhi=999999.)
{
Int_t ylobin,yhibin,zlobin,zhibin;
TH3F *hist3=(TH3F *) gROOT->FindObject(histname);
Int_t nch=strlen(histname+3);
char * projname=new char[nch];
sprintf(projname,"%s_%s",histname,"x");
if (ylow==-999999. && yhi=999999) {
ylow=hist3->GetYaxis()->GetXmin();
yhi=hist3->GetYaxis()->GetXmax();
}
if (zlow==-999999. && zhi=999999) {
zlow=hist3->GetZaxis()->GetXmin();
zhi=hist3->GetZaxis()->GetXmax();
}
ylobin=hist3->GetYaxis()->FindBin(ylow);
yhibin=hist3->GetYaxis()->FindBin(yhi);
zlobin=hist3->GetZaxis()->FindBin(zlow);
zhibin=hist3->GetZaxis()->FindBin(zhi);
hist3->GetYaxis()->SetRange(ylobin,yhibin);
hist3->GetZaxis()->SetRange(zlobin,zhibin);
hist3->GetXaxis()->SetRange(0,hist3->GetNbinsX());
hist3->Project3D("x")->Draw();
}
void pj3y(Char_t *histname, Float_t xlow, Float_t xhi, Float_t zlow, Float_t zhi)
{
TH3F *hist3=(TH3F *) gROOT->FindObject(histname);
hist3->GetXaxis()->SetRange(xlow,xhi);
hist3->GetZaxis()->SetRange(zlow,zhi);
hist3->Project3D("y");
}
void pj3z(Char_t *histname, Float_t xlow, Float_t xhi, Float_t ylow, Float_t yhi)
{
TH3F *hist3=(TH3F *) gROOT->FindObject(histname);
hist3->GetXaxis()->SetRange(xlow,xhi);
hist3->GetYaxis()->SetRange(ylow,yhi);
hist3->Project3D("z");
}
void pj3xy(Char_t *histname, Float_t zmin=-999999., Float_t zmax=999999.)
{
Int_t zbin1,zbin2;
TH3F *hist3=(TH3F *) gROOT->FindObject(histname);
// search for an existing projection and delete it if it exists:
Int_t nch=strlen(histname+4);
char * projname=new char[nch];
sprintf(projname,"%s_%s",histname,"xy");
if (zmin==-999999. && zmax==999999.) {
zmin=hist3->GetZaxis()->GetXmin();
zmax=hist3->GetZaxis()->GetXmax();
} else if (zmax==999999. && zmin !=-999999.) {
zmax=zmin;
}
zbin1=hist3->GetZaxis()->FindBin(zmin);
zbin2=hist3->GetZaxis()->FindBin(zmax);
hist3->GetZaxis()->SetRange(zbin1,zbin2);
hist3->GetXaxis()->SetRange(0,hist3->GetNbinsX());
hist3->GetYaxis()->SetRange(0,hist3->GetNbinsY());
hist3->Project3D("xy")->Draw("col2");
}
void pj3yx(Char_t *histname, Float_t zmin=-999999., Float_t zmax=999999.)
{
Int_t zbin1,zbin2;
TH3F *hist3=(TH3F *) gROOT->FindObject(histname);
// search for an existing projection and delete it if it exists:
Int_t nch=strlen(histname+4);
char * projname=new char[nch];
sprintf(projname,"%s_%s",histname,"xy");
// if ((TH2D *) gROOT->FindObject(projname))
// (TH2D *) gROOT->FindObject(projname)->Delete();
if (zmin==-999999. && zmax==999999.) {
zmin=hist3->GetZaxis()->GetXmin();
zmax=hist3->GetZaxis()->GetXmax();
} else if (zmax==999999. && zmin !=-999999.) {
zmax=zmin;
}
zbin1=hist3->GetZaxis()->FindBin(zmin);
zbin2=hist3->GetZaxis()->FindBin(zmax);
hist3->GetZaxis()->SetRange(zbin1,zbin2);
// hist3->GetYaxis()->SetRange(hist3->GetYaxis()->GetXmin(),
// hist3->GetYaxis()->GetXmax());
// hist3->GetXaxis()->SetRange(hist3->GetXaxis()->GetXmin(),
// hist3->GetXaxis()->GetXmax());
hist3->GetXaxis()->SetRange(0,hist3->GetNbinsX());
hist3->GetYaxis()->SetRange(0,hist3->GetNbinsY());
hist3->Project3D("yx")->Draw("col2");
}
void pjxwin(Char_t *histname, Char_t *cutname)
{
TCutG *tempcut;
Int_t whatsit=whatis(histname,0);
if (whatsit != 3 && whatsit !=4) {
cout << "histogram is not a 2D or is not found!"<<endl;
return;
}
switch(whatsit) {
case 3:
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
break ;
case 4:
TH2D *hist2=(TH2D *) gROOT->FindObject(histname);
break;
}
if (!(TCutG *) gROOT->GetListOfSpecials()->FindObject(cutname)) {
cout << "Graphical cut "<<cutname<<" is not found!"<<endl;
return;
} else {
tempcut = (TCutG *) gROOT->GetListOfSpecials()->FindObject(cutname);
}
if ((TH1D *) gROOT->FindObject("xwproj")) xwproj->Delete();
TH1D * xwproj=new TH1D("xwproj","X projection",hist2->GetNbinsX(),
hist2->GetXaxis()->GetXmin(),
hist2->GetXaxis()->GetXmax());
for (Int_t xbin=0; xbin < hist2->GetNbinsX();xbin++) {
for (Int_t ybin=0; ybin < hist2->GetNbinsY(); ybin++) {
if (tempcut->IsInside(hist2->GetXaxis()->GetBinCenter(xbin),
hist2->GetYaxis()->GetBinCenter(ybin))) {
xwproj->Fill(hist2->GetXaxis()->GetBinCenter(xbin),
hist2->GetBinContent(xbin,ybin));
}
}
}
xwproj->Draw();
}
void pjywin(Char_t *histname, Char_t *cutname)
{
TCutG *tempcut;
Int_t whatsit=whatis(histname,0);
if (whatsit != 3 && whatsit !=4) {
cout << "histogram is not a 2D or is not found!"<<endl;
return;
}
switch(whatsit) {
case 3:
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
break ;
case 4:
TH2D *hist2=(TH2D *) gROOT->FindObject(histname);
break;
}
if (!(TCutG *) gROOT->GetListOfSpecials()->FindObject(cutname)) {
cout << "Graphical cut "<<cutname<<" is not found!"<<endl;
return;
} else {
tempcut = (TCutG *) gROOT->GetListOfSpecials()->FindObject(cutname);
}
if ((TH1D *) gROOT->FindObject("ywproj")) ywproj->Delete();
TH1D * ywproj=new TH1D("ywproj","Y projection",hist2->GetNbinsY(),
hist2->GetYaxis()->GetXmin(),
hist2->GetYaxis()->GetXmax());
for (Int_t xbin=0; xbin < hist2->GetNbinsX();xbin++) {
for (Int_t ybin=0; ybin < hist2->GetNbinsY(); ybin++) {
if (tempcut->IsInside(hist2->GetXaxis()->GetBinCenter(xbin),
hist2->GetYaxis()->GetBinCenter(ybin))) {
ywproj->Fill(hist2->GetYaxis()->GetBinCenter(ybin),
hist2->GetBinContent(xbin,ybin));
}
}
}
ywproj->Draw();
}
void pj2win(Char_t *histname, Char_t *cutname)
{
TCutG *tempcut;
Int_t whatsit=whatis(histname,0);
if (whatsit != 3 && whatsit !=4) {
cout << "histogram is not a 2D or is not found!"<<endl;
return;
}
switch(whatsit) {
case 3:
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
break ;
case 4:
TH2D *hist2=(TH2D *) gROOT->FindObject(histname);
break;
}
if (!(TCutG *) gROOT->GetListOfSpecials()->FindObject(cutname)) {
cout << "Graphical cut "<<cutname<<" is not found!"<<endl;
return;
} else {
tempcut = (TCutG *) gROOT->GetListOfSpecials()->FindObject(cutname);
}
if ((TH2F *) gROOT->FindObject("xywproj")) xywproj->Delete();
TH2F * xywproj=new TH2F("xywproj","XY copy",hist2->GetNbinsX(),
hist2->GetXaxis()->GetXmin(),
hist2->GetXaxis()->GetXmax(),
hist2->GetNbinsY(),
hist2->GetYaxis()->GetXmin(),
hist2->GetYaxis()->GetXmax());
for (Int_t xbin=0; xbin < hist2->GetNbinsX();xbin++) {
for (Int_t ybin=0; ybin < hist2->GetNbinsY(); ybin++) {
if (tempcut->IsInside(hist2->GetXaxis()->GetBinCenter(xbin),
hist2->GetYaxis()->GetBinCenter(ybin))) {
xywproj->Fill(hist2->GetXaxis()->GetBinCenter(xbin),
hist2->GetYaxis()->GetBinCenter(ybin),
hist2->GetBinContent(xbin,ybin));
}
}
}
xywproj->Draw("col2");
}
void pjx(Char_t *histname, Float_t ymin=-999999., Float_t ymax=999999.)
{
Int_t ybin1,ybin2;
if ((TH1D *) gROOT->FindObject("xproj")) xproj->Delete();
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
if (ymin==-999999. && ymax==999999.) {
ybin2=hist2->GetNbinsY();
ybin1=0;
} else if (ymax==999999. && ymin !=-999999.) {
ybin1=hist2->GetYaxis()->FindBin(ymin);
ybin2=ybin1;
} else {
ybin1=hist2->GetYaxis()->FindBin(ymin);
ybin2=hist2->GetYaxis()->FindBin(ymax);
}
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
hist2->ProjectionX("xproj",ybin1,ybin2)->Draw();
}
void pjy1(Char_t *histname, Float_t x=-999999.) {
pjy(histname, x, x);
}
void pjy(Char_t *histname, Float_t xmin=-999999., Float_t xmax=999999.)
{
Int_t xbin1,xbin2;
if ((TH1D *) gROOT->FindObject("yproj")) yproj->Delete();
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
if (xmin==-999999. && xmax==999999.) {
xbin2=hist2->GetNbinsX();
xbin1=0;
} else if (xmax==999999. && xmin !=-999999.) {
xbin1=hist2->GetXaxis()->FindBin(xmin);
xbin2=xbin1;
} else {
xbin1=hist2->GetXaxis()->FindBin(xmin);
xbin2=hist2->GetXaxis()->FindBin(xmax);
}
hist2->ProjectionY("yproj",xbin1,xbin2)->Draw();
}
void savecanvas(Char_t *cnvname, Char_t * filename)
{
TCanvas *thecanvas=(TCanvas *) gROOT->FindObject(cnvname);
thecanvas->SaveAs(filename);
}
void gfit(Char_t *histname, Float_t xmin=-999999., Float_t xmax=999999)
{
Float_t sigma=0, width=0;
TH1F *hist1=(TH1F*) gROOT->FindObject(histname);
if (xmin==-999999. && xmax==999999.) {
xmin=hist1->GetXaxis()->GetXmin();
xmax=hist1->GetXaxis()->GetXmax();
} else if (xmax==999999. && xmin !=-999999.) {
xmax=xmin;
}
hist1->Fit("gaus","W","",xmin,xmax);
sigma=hist1->GetFunction("gaus")->GetParameter(2);
width=sigma*2.35482;
printf("Width of peak is %f or %f FWHM\n",sigma,width);
printf("Width of peak is %f ns or %f FWHM ns, mean %f ns\n",sigma/5.,width/5.,hist1->GetFunction("gaus")->GetParameter(1)/5.);
printf("Width of peak is %f mm or %f FWHM mm, mean %f mm\n",sigma/5./2.5,width/5./2.5,hist1->GetFunction("gaus")->GetParameter(1)/5./2.5);
}
void pfit(Char_t *histname, Float_t xmin=-999999., Float_t xmax=999999,Int_t order=1)
{
TH1F *hist1=(TH1F*) gROOT->FindObject(histname);
if (xmin==-999999. && xmax==999999.) {
xmin=hist1->GetXaxis()->GetXmin();
xmax=hist1->GetXaxis()->GetXmax();
} else if (xmax==999999. && xmin !=-999999.) {
xmax=xmin;
}
if (order<10) {
switch(order) {
case 0:
cout <<" Not meaningful!!"<<endl;
break;
case 1:
hist1->Fit("pol1","W","",xmin,xmax);
break;
case 2:
hist1->Fit("pol2","W","",xmin,xmax);
break;
case 3:
hist1->Fit("pol3","W","",xmin,xmax);
break;
case 4:
hist1->Fit("pol4","W","",xmin,xmax);
break;
case 5:
hist1->Fit("pol5","W","",xmin,xmax);
break;
case 6:
hist1->Fit("pol6","W","",xmin,xmax);
break;
case 7:
hist1->Fit("pol7","W","",xmin,xmax);
break;
case 8:
hist1->Fit("pol8","W","",xmin,xmax);
break;
case 9:
hist1->Fit("pol9","W","",xmin,xmax);
break;
}
} else {
cout << "Only works to 9th order."<<endl;
}
}
void pfx(Char_t *histname,Float_t ymin=-999999.,Float_t ymax=999999.)
{
if ((TProfile *) gROOT->FindObject("xprof")) xprof->Delete();
Int_t yminbin,ymaxbin;
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
if (ymin==-999999.) {
yminbin=0;
} else {
yminbin=hist2->GetYaxis()->FindBin(ymin);
}
if (ymax==999999.) {
ymaxbin=hist2->GetNbinsY();
} else {
ymaxbin=hist2->GetYaxis()->FindBin(ymax);
}
hist2->ProfileX("xprof",yminbin,ymaxbin)->Draw();
}
void pfy(Char_t *histname,Float_t xmin=0, Float_t xmax=0)
{
if ((TProfile *) gROOT->FindObject("yprof")) yprof->Delete();
Int_t xminbin,xmaxbin;
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
if (xmin==0) {
xminbin=0;
} else {
xminbin=hist2->GetXaxis()->FindBin(xmin);
}
if (xmax==0) {
xmaxbin=hist2->GetNbinsX();
} else {
xmaxbin=hist2->GetXaxis()->FindBin(xmax);
}
hist2->ProfileY("yprof",xminbin,xmaxbin)->Draw();
}
void drawcut(Char_t *cutname)
{ if( c1 == 0 ) {
cout<<"please display the histogram first.\n";
return;
}
char path[124]=gROOT->GetPath();
readcuts("cut_file.root");
TCutG *cut1 = (TCutG*) gROOT->FindObject(cutname);
if( cut1 == 0 ) {
cout<<"Sorry, "<<cutname<<" does not exist.\n";
} else {
c1->cd();
cut1->SetLineColor(2);
cut1->SetLineWidth(2);
cut1->Draw();
}
gROOT->cd(path);
}
void readcuts(Char_t *filename)
{
char path[124]=gROOT->GetPath();//added
cout<<path<<endl;
TFile *fin=new TFile(filename);
TList *speclist=(TList*) fin->GetListOfSpecials();
speclist->Read();
//the following 3 lines are copied from a similar block of code...
fin->ReadAll();
fin->Purge();
fin->ls("-d");
fin->Close();
gROOT->cd(path);
}
void deletecuts(Char_t *filename, Char_t *cut_name)
{
char path[124]=gROOT->GetPath();
cout<<path<<endl;
TFile *fin=new TFile(filename,"update");
fin->ReadAll();
TString cutname=TString(cut_name)+";*";
cout<<"Do you want to delete "<<cutname<<" ? (y/n)"<<endl;
char opt;
cin>>opt;
if( opt == 'y' ) {
fin->Delete( cutname.Data() );
cout<<cutname<<" is deleted."<<endl;
}
fin->Close();
gROOT->cd(path);
}
void setname(Char_t *oldname, Char_t *newname)
{
TNamed *obj=(TNamed *) gROOT->FindObject(oldname);
obj->SetName(newname);
}
void saveall(Char_t *filename)
{
TList *hlist=gDirectory->GetList();
TList *clist=gROOT->GetListOfCanvases();
TList *speclist=gROOT->GetListOfSpecials();
TFile *fout=new TFile(filename,"recreate");
fout->cd();
hlist->Write();
clist->Write();
speclist->Write();
fout->Close();
cout << "Histograms, canvases and specials written to file "<<filename<<endl;
}
void savecuts(Char_t *filename)
{
TList *speclist=gROOT->GetListOfSpecials();
TFile *fout=new TFile(filename,"recreate");
fout->cd();
speclist->Write();
fout->Purge();//added
fout->ls();
fout->Close();
cout << "Special objects written to file "<<filename<<endl;
}
void listcuts()
{
TList *speclist=gROOT->GetListOfSpecials();
cout<<"To be implemented."<<endl;
}
void setcutg(Char_t *cutname="CUTG", Char_t *xvar="",Char_t *yvar="")
{
TCutG *gcut=(TCutG *) gROOT->GetListOfSpecials()->FindObject(cutname);
gcut->SetVarX(xvar);
gcut->SetVarY(yvar);
}
void setplain(void)
{
//gROOT->SetStyle("Plain");
//gStyle->SetPalette(1,0);
printf("Default style being used.\n");
}
void show(Char_t *histname)
{
Int_t whatsit=whatis(histname);
switch(whatsit) {
case 1:
TH1F *hist1=(TH1F *) gROOT->FindObject(histname);
break;
case 2:
TH1D *hist1=(TH1D *) gROOT->FindObject(histname);
break;
case 3:
TH2F *hist2=(TH2F *) gROOT->FindObject(histname);
break;
case 4:
TH2D *hist2=(TH2D *) gROOT->FindObject(histname);
break;
case 5:
TH3F *hist3=(TH3F *) gROOT->FindObject(histname);
break;
case 6:
TProfile *hist1=(TProfile *) gROOT->FindObject(histname);
break;
}
if (whatsit==1||whatsit==2) {
cout << "1D histogram "<<histname<<" : "<<endl;
cout << hist1->GetNbinsX()<<" bins from " <<hist1->GetXaxis()->GetXmin()
<< " to " << hist1->GetXaxis()->GetXmax()<<endl;
}
if (whatsit==3 || whatsit==4) {
cout <<"2D histogram "<<histname<<" : "<<endl;
cout << "X axis: "<<hist2->GetNbinsX()<<" bins from " <<
hist2->GetXaxis()->GetXmin()<<" to "<<hist2->GetXaxis()->GetXmax()
<<endl;
cout << "Y axis: "<<hist2->GetNbinsY()<<" bins from " <<
hist2->GetYaxis()->GetXmin()<<" to "<<hist2->GetYaxis()->GetXmax()
<<endl;
}
}
void subtract(Char_t *histin1, Char_t *histin2, Char_t *histout, Float_t scale1=1.0, Float_t scale2=-1.0)
{//updated to use scale, omitts ierr