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Reference Guide
ProofSimple.C File Reference

Detailed Description

Selector to fill a set of histograms.

#define ProofSimple_cxx
#include "ProofSimple.h"
#include <TCanvas.h>
#include <TFrame.h>
#include <TPaveText.h>
#include <TFormula.h>
#include <TF1.h>
#include <TH1F.h>
#include <TH3F.h>
#include <TMath.h>
#include <TRandom3.h>
#include <TString.h>
#include <TStyle.h>
#include <TSystem.h>
#include <TParameter.h>
#include <TSortedList.h>
#include "TProof.h"
#include <TFile.h>
#include <TNtuple.h>
#include <TFileInfo.h>
#include <THashList.h>
//_____________________________________________________________________________
ProofSimple::ProofSimple()
{
// Constructor
fNhist = -1;
fHist = 0;
fNhist3 = -1;
fHist3 = 0;
fRandom = 0;
fHLab = 0;
fFile = 0;
fProofFile = 0;
fNtp = 0;
fHasNtuple = 0;
fPlotNtuple = kFALSE;
}
//_____________________________________________________________________________
ProofSimple::~ProofSimple()
{
// Destructor
if (fFile) {
SafeDelete(fNtp);
SafeDelete(fFile);
}
SafeDelete(fRandom);
}
//_____________________________________________________________________________
void ProofSimple::Begin(TTree * /*tree*/)
{
// The Begin() function is called at the start of the query.
// When running with PROOF Begin() is only called on the client.
// The tree argument is deprecated (on PROOF 0 is passed).
TString option = GetOption();
Ssiz_t iopt = kNPOS;
// Histos array
if (fInput->FindObject("ProofSimple_NHist")) {
dynamic_cast<TParameter<Long_t>*>(fInput->FindObject("ProofSimple_NHist"));
fNhist = (p) ? (Int_t) p->GetVal() : fNhist;
} else if ((iopt = option.Index("nhist=")) != kNPOS) {
Ssiz_t from = iopt + strlen("nhist=");
if (option.Tokenize(s, from, ";") && s.IsDigit()) fNhist = s.Atoi();
}
if (fNhist < 1) {
Abort("fNhist must be > 0! Hint: proof->SetParameter(\"ProofSimple_NHist\","
" (Long_t) <nhist>)", kAbortProcess);
return;
}
if (fInput->FindObject("ProofSimple_NHist3")) {
dynamic_cast<TParameter<Long_t>*>(fInput->FindObject("ProofSimple_NHist3"));
fNhist3 = (p) ? (Int_t) p->GetVal() : fNhist3;
} else if ((iopt = option.Index("nhist3=")) != kNPOS) {
Ssiz_t from = iopt + strlen("nhist3=");
if (option.Tokenize(s, from, ";") && s.IsDigit()) fNhist3 = s.Atoi();
}
// Ntuple
TNamed *nm = dynamic_cast<TNamed *>(fInput->FindObject("ProofSimple_Ntuple"));
if (nm) {
// Title is in the form
// merge merge via file
// |<fout> location of the output file if merge
// |retrieve retrieve to client machine
// dataset create a dataset
// |<dsname> dataset name (default: dataset_ntuple)
// |plot for a final plot
// <empty> or other keep in memory
fHasNtuple = 1;
TString ontp(nm->GetTitle());
if (ontp.Contains("|plot") || ontp == "plot") {
fPlotNtuple = kTRUE;
ontp.ReplaceAll("|plot", "");
if (ontp == "plot") ontp = "";
}
if (ontp.BeginsWith("dataset")) fHasNtuple = 2;
}
}
//_____________________________________________________________________________
void ProofSimple::SlaveBegin(TTree * /*tree*/)
{
// The SlaveBegin() function is called after the Begin() function.
// When running with PROOF SlaveBegin() is called on each slave server.
// The tree argument is deprecated (on PROOF 0 is passed).
TString option = GetOption();
Ssiz_t iopt = kNPOS;
// Histos array
if (fInput->FindObject("ProofSimple_NHist")) {
dynamic_cast<TParameter<Long_t>*>(fInput->FindObject("ProofSimple_NHist"));
fNhist = (p) ? (Int_t) p->GetVal() : fNhist;
} else if ((iopt = option.Index("nhist=")) != kNPOS) {
Ssiz_t from = iopt + strlen("nhist=");
if (option.Tokenize(s, from, ";") && s.IsDigit()) fNhist = s.Atoi();
}
if (fNhist < 1) {
Abort("fNhist must be > 0! Hint: proof->SetParameter(\"ProofSimple_NHist\","
" (Long_t) <nhist>)", kAbortProcess);
return;
}
fHist = new TH1F*[fNhist];
TString hn;
// Create the histogram
for (Int_t i=0; i < fNhist; i++) {
hn.Form("h%d",i);
fHist[i] = new TH1F(hn.Data(), hn.Data(), 100, -3., 3.);
fHist[i]->SetFillColor(kRed);
fOutput->Add(fHist[i]);
}
// 3D Histos array
if (fInput->FindObject("ProofSimple_NHist3")) {
dynamic_cast<TParameter<Long_t>*>(fInput->FindObject("ProofSimple_NHist3"));
fNhist3 = (p) ? (Int_t) p->GetVal() : fNhist3;
} else if ((iopt = option.Index("nhist3=")) != kNPOS) {
Ssiz_t from = iopt + strlen("nhist3=");
if (option.Tokenize(s, from, ";") && s.IsDigit()) fNhist3 = s.Atoi();
}
if (fNhist3 > 0) {
fHist3 = new TH3F*[fNhist3];
Info("Begin", "%d 3D histograms requested", fNhist3);
// Create the 3D histogram
for (Int_t i=0; i < fNhist3; i++) {
hn.Form("h%d_3d",i);
fHist3[i] = new TH3F(hn.Data(), hn.Data(),
100, -3., 3., 100, -3., 3., 100, -3., 3.);
fOutput->Add(fHist3[i]);
}
}
// Histo with labels
if (fInput->FindObject("ProofSimple_TestLabelMerging")) {
fHLab = new TH1F("hlab", "Test merging of histograms with automatic labels", 10, 0., 10.);
fOutput->Add(fHLab);
}
// Ntuple
TNamed *nm = dynamic_cast<TNamed *>(fInput->FindObject("ProofSimple_Ntuple"));
if (nm) {
// Title is in the form
// merge merge via file
// |<fout> location of the output file if merge
// |retrieve retrieve to client machine
// dataset create a dataset
// |<dsname> dataset name (default: dataset_ntuple)
// |plot for a final plot
// <empty> or other keep in memory
fHasNtuple = 1;
TString ontp(nm->GetTitle());
if (ontp.Contains("|plot") || ontp == "plot") {
fPlotNtuple = kTRUE;
ontp.ReplaceAll("|plot", "");
if (ontp == "plot") ontp = "";
}
TString locfn("SimpleNtuple.root");
if (ontp.BeginsWith("merge")) {
ontp.Replace(0,5,"");
fProofFile = new TProofOutputFile(locfn, "M");
TString fn;
Ssiz_t iret = ontp.Index("|retrieve");
if (iret != kNPOS) {
fProofFile->SetRetrieve(kTRUE);
TString rettag("|retrieve");
if ((iret = ontp.Index("|retrieve=")) != kNPOS) {
rettag += "=";
fn = ontp(iret + rettag.Length(), ontp.Length() - iret - rettag.Length());
if ((iret = fn.Index('|')) != kNPOS) fn.Remove(iret);
rettag += fn;
}
ontp.ReplaceAll(rettag, "");
}
Ssiz_t iof = ontp.Index('|');
if (iof != kNPOS) ontp.Remove(0, iof + 1);
if (!ontp.IsNull()) {
fProofFile->SetOutputFileName(ontp.Data());
if (fn.IsNull()) fn = gSystem->BaseName(TUrl(ontp.Data(), kTRUE).GetFile());
}
if (fn.IsNull()) fn = locfn;
// This will be the final file on the client, the case there is one
fProofFile->SetTitle(fn);
} else if (ontp.BeginsWith("dataset")) {
ontp.Replace(0,7,"");
Ssiz_t iof = ontp.Index("|");
if (iof != kNPOS) ontp.Remove(0, iof + 1);
TString dsname = (!ontp.IsNull()) ? ontp.Data() : "dataset_ntuple";
fProofFile = new TProofOutputFile("SimpleNtuple.root",
fHasNtuple = 2;
} else if (!ontp.IsNull()) {
Warning("SlaveBegin", "ntuple options unknown: ignored (%s)", ontp.Data());
}
// Open the file, if required
if (fProofFile) {
// Open the file
fFile = fProofFile->OpenFile("RECREATE");
if (fFile && fFile->IsZombie()) SafeDelete(fFile);
// Cannot continue
if (!fFile) {
Info("SlaveBegin", "could not create '%s': instance is invalid!", fProofFile->GetName());
return;
}
}
// Now we create the ntuple
fNtp = new TNtuple("ntuple","Demo ntuple","px:py:pz:random:i");
// File resident, if required
if (fFile) {
fNtp->SetDirectory(fFile);
fNtp->AutoSave();
} else {
fOutput->Add(fNtp);
}
}
// Set random seed
fRandom = new TRandom3(0);
}
//_____________________________________________________________________________
Bool_t ProofSimple::Process(Long64_t entry)
{
// The Process() function is called for each entry in the tree (or possibly
// keyed object in the case of PROOF) to be processed. The entry argument
// specifies which entry in the currently loaded tree is to be processed.
// It can be passed to either ProofSimple::GetEntry() or TBranch::GetEntry()
// to read either all or the required parts of the data. When processing
// keyed objects with PROOF, the object is already loaded and is available
// via the fObject pointer.
//
// This function should contain the "body" of the analysis. It can contain
// simple or elaborate selection criteria, run algorithms on the data
// of the event and typically fill histograms.
//
// The processing can be stopped by calling Abort().
//
// Use fStatus to set the return value of TTree::Process().
//
// The return value is currently not used.
for (Int_t i=0; i < fNhist; i++) {
if (fRandom && fHist[i]) {
Double_t x = fRandom->Gaus(0.,1.);
fHist[i]->Fill(x);
}
}
for (Int_t i=0; i < fNhist3; i++) {
if (fRandom && fHist3[i]) {
Double_t x = fRandom->Gaus(0.,1.);
fHist3[i]->Fill(x,x,x);
}
}
if (fHLab && fRandom) {
TSortedList sortl;
Float_t rr[10];
fRandom->RndmArray(10, rr);
for (Int_t i=0; i < 10; i++) {
sortl.Add(new TParameter<Int_t>(TString::Format("%f",rr[i]), i));
}
TIter nxe(&sortl);
while ((pi = (TParameter<Int_t> *) nxe())) {
fHLab->Fill(TString::Format("hl%d", pi->GetVal()), pi->GetVal());
}
}
if (fNtp) FillNtuple(entry);
return kTRUE;
}
//_____________________________________________________________________________
void ProofSimple::FillNtuple(Long64_t entry)
{
// The Process() function is called for each entry in the tree (or possibly
// keyed object in the case of PROOF) to be processed. The entry argument
// specifies which entry in the currently loaded tree is to be processed.
// It can be passed to either ProofNtuple::GetEntry() or TBranch::GetEntry()
// to read either all or the required parts of the data. When processing
// keyed objects with PROOF, the object is already loaded and is available
// via the fObject pointer.
//
// This function should contain the "body" of the analysis. It can contain
// simple or elaborate selection criteria, run algorithms on the data
// of the event and typically fill histograms.
//
// The processing can be stopped by calling Abort().
//
// Use fStatus to set the return value of TTree::Process().
//
// The return value is currently not used.
if (!fNtp) return;
// Fill ntuple
Float_t px, py, random;
if (fRandom) {
fRandom->Rannor(px,py);
random = fRandom->Rndm();
} else {
Abort("no way to get random numbers! Stop processing", kAbortProcess);
return;
}
Float_t pz = px*px + py*py;
Int_t i = (Int_t) entry;
fNtp->Fill(px,py,pz,random,i);
return;
}
//_____________________________________________________________________________
void ProofSimple::SlaveTerminate()
{
// The SlaveTerminate() function is called after all entries or objects
// have been processed. When running with PROOF SlaveTerminate() is called
// on each slave server.
// Write the ntuple to the file
if (fFile) {
if (!fNtp) {
Error("SlaveTerminate", "'ntuple' is undefined!");
return;
}
Bool_t cleanup = kFALSE;
TDirectory *savedir = gDirectory;
if (fNtp->GetEntries() > 0) {
fFile->cd();
fNtp->Write();
fProofFile->Print();
fOutput->Add(fProofFile);
} else {
cleanup = kTRUE;
}
fNtp->SetDirectory(0);
gDirectory = savedir;
fFile->Close();
// Cleanup, if needed
if (cleanup) {
TUrl uf(*(fFile->GetEndpointUrl()));
SafeDelete(fFile);
gSystem->Unlink(uf.GetFile());
SafeDelete(fProofFile);
}
}
}
//_____________________________________________________________________________
void ProofSimple::Terminate()
{
// The Terminate() function is the last function to be called during
// a query. It always runs on the client, it can be used to present
// the results graphically or save the results to file.
//
// Create a canvas, with 100 pads
//
TCanvas *c1 = (TCanvas *) gDirectory->FindObject("c1");
if (c1) {
gDirectory->Remove(c1);
delete c1;
}
c1 = new TCanvas("c1","Proof ProofSimple canvas",200,10,700,700);
Int_t nside = (Int_t)TMath::Sqrt((Float_t)fNhist);
nside = (nside*nside < fNhist) ? nside+1 : nside;
c1->Divide(nside,nside,0,0);
Bool_t tryfc = kFALSE;
TH1F *h = 0;
for (Int_t i=0; i < fNhist; i++) {
if (!(h = dynamic_cast<TH1F *>(TProof::GetOutput(Form("h%d",i), fOutput)))) {
// Not found: try TFileCollection
tryfc = kTRUE;
break;
}
c1->cd(i+1);
h->DrawCopy();
}
// If the histograms are not found they may be in files: is there a file collection?
if (tryfc && GetHistosFromFC(c1) != 0) {
Warning("Terminate", "histograms not found");
} else {
// Final update
c1->cd();
c1->Update();
}
// Analyse hlab, if there
if (fHLab && !gROOT->IsBatch()) {
// Printout
Int_t nb = fHLab->GetNbinsX();
if (nb > 0) {
Double_t entb = fHLab->GetEntries() / nb;
if (entb) {
for (Int_t i = 0; i < nb; i++) {
TString lab = TString::Format("hl%d", i);
Int_t ib = fHLab->GetXaxis()->FindBin(lab);
Info("Terminate"," %s [%d]:\t%f", lab.Data(), ib, fHLab->GetBinContent(ib)/entb);
}
} else
Warning("Terminate", "no entries in the hlab histogram!");
}
}
// Process the ntuple, if required
if (fHasNtuple != 1 || !fPlotNtuple) return;
if (!(fNtp = dynamic_cast<TNtuple *>(TProof::GetOutput("ntuple", fOutput)))) {
// Get the ntuple from the file
if ((fProofFile =
dynamic_cast<TProofOutputFile*>(fOutput->FindObject("SimpleNtuple.root")))) {
TString outputFile(fProofFile->GetOutputFileName());
TString outputName(fProofFile->GetName());
outputName += ".root";
Printf("outputFile: %s", outputFile.Data());
// Read the ntuple from the file
fFile = TFile::Open(outputFile);
if (fFile) {
Printf("Managed to open file: %s", outputFile.Data());
fNtp = (TNtuple *) fFile->Get("ntuple");
} else {
Error("Terminate", "could not open file: %s", outputFile.Data());
}
if (!fFile) return;
} else {
Error("Terminate", "TProofOutputFile not found");
return;
}
}
// Plot ntuples
if (fNtp) PlotNtuple(fNtp, "proof ntuple");
}
//_____________________________________________________________________________
void ProofSimple::PlotNtuple(TNtuple *ntp, const char *ntptitle)
{
// Make some plots from the ntuple 'ntp'
//
// Create a canvas, with 2 pads
//
TCanvas *c1 = new TCanvas(Form("cv-%s", ntp->GetName()), ntptitle,800,10,700,780);
c1->Divide(1,2);
TPad *pad1 = (TPad *) c1->GetPad(1);
TPad *pad2 = (TPad *) c1->GetPad(2);
//
// Display a function of one ntuple column imposing a condition
// on another column.
pad1->cd();
pad1->SetGrid();
pad1->SetLogy();
pad1->GetFrame()->SetFillColor(15);
ntp->SetLineColor(1);
ntp->SetFillStyle(1001);
ntp->SetFillColor(45);
ntp->Draw("3*px+2","px**2+py**2>1");
ntp->SetFillColor(38);
ntp->Draw("2*px+2","pz>2","same");
ntp->SetFillColor(5);
ntp->Draw("1.3*px+2","(px^2+py^2>4) && py>0","same");
pad1->RedrawAxis();
//
// Display a 3-D scatter plot of 3 columns. Superimpose a different selection.
pad2->cd();
ntp->Draw("pz:py:px","(pz<10 && pz>6)+(pz<4 && pz>3)");
ntp->SetMarkerColor(4);
ntp->Draw("pz:py:px","pz<6 && pz>4","same");
ntp->SetMarkerColor(5);
ntp->Draw("pz:py:px","pz<4 && pz>3","same");
TPaveText *l2 = new TPaveText(0.,0.6,0.9,0.95);
l2->SetFillColor(42);
l2->SetTextAlign(12);
l2->AddText("You can interactively rotate this view in 2 ways:");
l2->AddText(" - With the RotateCube in clicking in this pad");
l2->AddText(" - Selecting View with x3d in the View menu");
l2->Draw();
// Final update
c1->cd();
c1->Update();
}
//_____________________________________________________________________________
Int_t ProofSimple::GetHistosFromFC(TCanvas *cv)
{
// Check for the histograms in the files of a possible TFileCollection
TIter nxo(fOutput);
Bool_t fc_found = kFALSE, hs_found = kFALSE;
while ((fc = (TFileCollection *) nxo())) {
if (strcmp(fc->ClassName(), "TFileCollection")) continue;
fc_found = kTRUE;
if (!fHist) {
fHist = new TH1F*[fNhist];
for (Int_t i = 0; i < fNhist; i++) { fHist[i] = 0; }
} else {
for (Int_t i = 0; i < fNhist; i++) { SafeDelete(fHist[i]); }
}
// Go through the list of files
TIter nxf(fc->GetList());
TFileInfo *fi = 0;
while ((fi = (TFileInfo *) nxf())) {
if (f) {
for (Int_t i = 0; i < fNhist; i++) {
TString hn = TString::Format("h%d", i);
TH1F *h = (TH1F *) f->Get(hn);
if (h) {
hs_found = kTRUE;
if (!fHist[i]) {
fHist[i] = (TH1F *) h->Clone();
fHist[i]->SetDirectory(0);
} else {
fHist[i]->Add(h);
}
} else {
Error("GetHistosFromFC", "histo '%s' not found in file '%s'",
hn.Data(), fi->GetCurrentUrl()->GetUrl());
}
}
f->Close();
} else {
Error("GetHistosFromFC", "file '%s' could not be open", fi->GetCurrentUrl()->GetUrl());
}
}
if (hs_found) break;
}
if (!fc_found) return -1;
if (!hs_found) return -1;
for (Int_t i = 0; i < fNhist; i++) {
cv->cd(i+1);
if (fHist[i]) {
fHist[i]->DrawCopy();
}
}
Info("GetHistosFromFC", "histograms read from %d files in TFileCollection '%s'",
fc->GetList()->GetSize(), fc->GetName());
// Done
return 0;
}
Selector to fill a set of histograms.
#define SafeDelete(p)
Definition: RConfig.hxx:547
#define f(i)
Definition: RSha256.hxx:104
#define h(i)
Definition: RSha256.hxx:106
const Ssiz_t kNPOS
Definition: RtypesCore.h:115
int Int_t
Definition: RtypesCore.h:45
int Ssiz_t
Definition: RtypesCore.h:67
unsigned int UInt_t
Definition: RtypesCore.h:46
const Bool_t kFALSE
Definition: RtypesCore.h:92
bool Bool_t
Definition: RtypesCore.h:63
double Double_t
Definition: RtypesCore.h:59
long long Long64_t
Definition: RtypesCore.h:73
float Float_t
Definition: RtypesCore.h:57
const Bool_t kTRUE
Definition: RtypesCore.h:91
@ kRed
Definition: Rtypes.h:66
#define gDirectory
Definition: TDirectory.h:290
void Info(const char *location, const char *msgfmt,...)
Use this function for informational messages.
Definition: TError.cxx:220
void Error(const char *location, const char *msgfmt,...)
Use this function in case an error occurred.
Definition: TError.cxx:187
void Warning(const char *location, const char *msgfmt,...)
Use this function in warning situations.
Definition: TError.cxx:231
#define gROOT
Definition: TROOT.h:406
char * Form(const char *fmt,...)
void Printf(const char *fmt,...)
R__EXTERN TSystem * gSystem
Definition: TSystem.h:559
static struct mg_connection * fc(struct mg_context *ctx)
Definition: civetweb.c:3728
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Definition: TAttFill.h:37
virtual void SetFillStyle(Style_t fstyle)
Set the fill area style.
Definition: TAttFill.h:39
virtual void SetLineColor(Color_t lcolor)
Set the line color.
Definition: TAttLine.h:40
virtual void SetMarkerColor(Color_t mcolor=1)
Set the marker color.
Definition: TAttMarker.h:38
virtual void SetTextAlign(Short_t align=11)
Set the text alignment.
Definition: TAttText.h:41
The Canvas class.
Definition: TCanvas.h:23
TVirtualPad * cd(Int_t subpadnumber=0) override
Set current canvas & pad.
Definition: TCanvas.cxx:708
Describe directory structure in memory.
Definition: TDirectory.h:45
virtual void Close(Option_t *option="")
Delete all objects from memory and directory structure itself.
Definition: TDirectory.cxx:593
Class that contains a list of TFileInfo's and accumulated meta data information about its entries.
Class describing a generic file including meta information.
Definition: TFileInfo.h:39
TUrl * GetCurrentUrl() const
Return the current url.
Definition: TFileInfo.cxx:249
A ROOT file is a suite of consecutive data records (TKey instances) with a well defined format.
Definition: TFile.h:54
static TFile * Open(const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0)
Create / open a file.
Definition: TFile.cxx:3997
1-D histogram with a float per channel (see TH1 documentation)}
Definition: TH1.h:575
3-D histogram with a float per channel (see TH1 documentation)}
Definition: TH3.h:268
The TNamed class is the base class for all named ROOT classes.
Definition: TNamed.h:29
virtual const char * GetName() const
Returns name of object.
Definition: TNamed.h:47
A simple TTree restricted to a list of float variables only.
Definition: TNtuple.h:28
The most important graphics class in the ROOT system.
Definition: TPad.h:26
void SetGrid(Int_t valuex=1, Int_t valuey=1) override
Definition: TPad.h:327
void SetLogy(Int_t value=1) override
Set Lin/Log scale for Y.
Definition: TPad.cxx:5947
void RedrawAxis(Option_t *option="") override
Redraw the frame axis.
Definition: TPad.cxx:5304
TVirtualPad * cd(Int_t subpadnumber=0) override
Set Current pad.
Definition: TPad.cxx:603
TFrame * GetFrame() override
Get frame.
Definition: TPad.cxx:2863
Named parameter, streamable and storable.
Definition: TParameter.h:35
const AParamType & GetVal() const
Definition: TParameter.h:67
A Pave (see TPave) with text, lines or/and boxes inside.
Definition: TPaveText.h:21
virtual TText * AddText(Double_t x1, Double_t y1, const char *label)
Add a new Text line to this pavetext at given coordinates.
Definition: TPaveText.cxx:183
virtual void Draw(Option_t *option="")
Draw this pavetext with its current attributes.
Definition: TPaveText.cxx:234
Class to steer the merging of files produced on the workers.
TObject * GetOutput(const char *name)
Get specified object that has been produced during the processing (see Process()).
Definition: TProof.cxx:9752
Random number generator class based on M.
Definition: TRandom3.h:27
A sorted doubly linked list.
Definition: TSortedList.h:28
void Add(TObject *obj)
Add object in sorted list.
Definition: TSortedList.cxx:27
Basic string class.
Definition: TString.h:136
TString & Replace(Ssiz_t pos, Ssiz_t n, const char *s)
Definition: TString.h:682
const char * Data() const
Definition: TString.h:369
TString & ReplaceAll(const TString &s1, const TString &s2)
Definition: TString.h:692
TObjArray * Tokenize(const TString &delim) const
This function is used to isolate sequential tokens in a TString.
Definition: TString.cxx:2217
Bool_t IsNull() const
Definition: TString.h:407
TString & Remove(Ssiz_t pos)
Definition: TString.h:673
static TString Format(const char *fmt,...)
Static method which formats a string using a printf style format descriptor and return a TString.
Definition: TString.cxx:2331
void Form(const char *fmt,...)
Formats a string using a printf style format descriptor.
Definition: TString.cxx:2309
Ssiz_t Index(const char *pat, Ssiz_t i=0, ECaseCompare cmp=kExact) const
Definition: TString.h:639
virtual const char * BaseName(const char *pathname)
Base name of a file name. Base name of /user/root is root.
Definition: TSystem.cxx:933
virtual int Unlink(const char *name)
Unlink, i.e.
Definition: TSystem.cxx:1379
A TTree represents a columnar dataset.
Definition: TTree.h:79
virtual void Draw(Option_t *opt)
Default Draw method for all objects.
Definition: TTree.h:428
This class represents a WWW compatible URL.
Definition: TUrl.h:33
const char * GetUrl(Bool_t withDeflt=kFALSE) const
Return full URL.
Definition: TUrl.cxx:389
const char * GetFile() const
Definition: TUrl.h:69
return c1
Definition: legend1.C:41
Double_t x[n]
Definition: legend1.C:17
void Begin(Int_t type)
static constexpr double nm
static constexpr double s
static constexpr double pi
Double_t Sqrt(Double_t x)
Definition: TMath.h:691
Author
Gerardo Ganis (gerar.nosp@m.do.g.nosp@m.anis@.nosp@m.cern.nosp@m..ch)

Definition in file ProofSimple.C.