15#define PRINTRANGE(a, b, bn) \
16 Printf(" base: %f %f %d, %s: %f %f %d", a->GetXmin(), a->GetXmax(), a->GetNbins(), bn, b->GetXmin(), b->GetXmax(), \
20 Bool_t hasLimits =
h->GetXaxis()->GetXmin() <
h->GetXaxis()->GetXmax();
21 if (
h->GetDimension() > 1) hasLimits &=
h->GetYaxis()->GetXmin() <
h->GetYaxis()->GetXmax();
22 if (
h->GetDimension() > 2) hasLimits &=
h->GetZaxis()->GetXmin() <
h->GetZaxis()->GetXmax();
55 if (ret)
return kTRUE;
59 Error(
"TH1Merger",
"Unknown type of Merge for histogram %s",
fH0->
GetName());
81 Error(
"AutoP2BuildAxes",
"undefined histogram: %p",
h);
87 Error(
"AutoP2BuildAxes",
"not in autobin-power-of-2 mode!");
95 Bool_t canextend = (
h->GetBinContent(0) > 0 ||
h->GetBinContent(a1->GetNbins() + 1) > 0) ?
kFALSE :
kTRUE;
99 a0->
Set(a1->GetNbins(), a1->GetXmin(), a1->GetXmax());
107 Double_t bwmin = (a1->GetXmax() - a1->GetXmin()) / a1->GetNbins();
115 Error(
"AutoP2BuildAxes",
"minimal bin width negative or null: %f", bwmin);
120 Double_t re = std::modf(bwmax / bwmin, &rt);
123 Error(
"AutoP2BuildAxes",
"bin widths not in integer ratio: %f", re);
130 if (a0->
GetXmin() < a1->GetXmin()) {
131 if (a0->
GetXmax() < a1->GetXmin()) {
134 Error(
"AutoP2BuildAxes",
"ranges are disconnected and under/overflows: cannot merge");
137 xmax = a1->GetXmax();
141 if (a0->
GetXmax() >= a1->GetXmax()) {
142 xmax = a1->GetXmax();
143 xmin = a1->GetXmin();
147 xmin = a1->GetXmin();
152 if (a1->GetXmax() < a0->
GetXmin()) {
155 Error(
"AutoP2BuildAxes",
"ranges are disconnected and under/overflows: cannot merge");
159 xmin = a1->GetXmin();
162 if (a1->GetXmax() >= a0->
GetXmax()) {
167 xmax = a1->GetXmax();
175 re = std::modf(range / bwmax, &rt);
178 Error(
"MergeCompatibleHistograms",
"range smaller than bin width: %f %f %f", range, bwmax, rt);
254 if (
h->GetDimension() != dimension) {
255 Error(
"Merge",
"Cannot merge histogram - dimensions are different\n "
256 "%s has dim=%d and %s has dim=%d",
fH0->
GetName(),dimension,
h->GetName(),
h->GetDimension());
262 haveWeights |=
h->GetSumw2N() != 0;
267 allHaveLimits = allHaveLimits && hasLimits;
268 allSameLimits &= allHaveLimits;
271 Error(
"Merge",
"Cannot merge histogram - some are in autobin-power-of-2 mode, but not %s!",
h->GetName());
275 Error(
"Merge",
"Cannot merge histogram - %s is in autobin-power-of-2 mode, but not the previous ones",
298 if (!initialLimitsFound) {
299 initialLimitsFound =
kTRUE;
300 if (
h->GetXaxis()->GetXbins()->GetSize() != 0)
301 fNewXAxis.
Set(
h->GetXaxis()->GetNbins(),
h->GetXaxis()->GetXbins()->GetArray());
303 fNewXAxis.
Set(
h->GetXaxis()->GetNbins(),
h->GetXaxis()->GetXmin(),
h->GetXaxis()->GetXmax());
305 if (
h->GetYaxis()->GetXbins()->GetSize() != 0)
306 fNewYAxis.
Set(
h->GetYaxis()->GetNbins(),
h->GetYaxis()->GetXbins()->GetArray());
308 fNewYAxis.
Set(
h->GetYaxis()->GetNbins(),
h->GetYaxis()->GetXmin(),
h->GetYaxis()->GetXmax());
311 if (
h->GetZaxis()->GetXbins()->GetSize() != 0)
312 fNewZAxis.
Set(
h->GetZaxis()->GetNbins(),
h->GetZaxis()->GetXbins()->GetArray());
314 fNewZAxis.
Set(
h->GetZaxis()->GetNbins(),
h->GetZaxis()->GetXmin(),
h->GetZaxis()->GetXmax());
326 Error(
"Merge",
"Cannot merge histograms - limits are inconsistent:\n "
327 "first: %s (%d, %f, %f), second: %s (%d, %f, %f)",
fH0->
GetName(),
329 h->GetName(),
h->GetXaxis()->GetNbins(),
h->GetXaxis()->GetXmin(),
330 h->GetXaxis()->GetXmax());
341 Error(
"Merge",
"Cannot merge histograms - limits are inconsistent:\n "
342 "first: %s (%d, %f, %f), second: %s (%d, %f, %f)",
fH0->
GetName(),
344 h->GetName(),
h->GetYaxis()->GetNbins(),
h->GetYaxis()->GetXmin(),
345 h->GetYaxis()->GetXmax());
352 Error(
"Merge",
"Cannot merge histograms - limits are inconsistent:\n "
353 "first: %s (%d, %f, %f), second: %s (%d, %f, %f)",
fH0->
GetName(),
355 h->GetName(),
h->GetZaxis()->GetNbins(),
h->GetZaxis()->GetXmin(),
356 h->GetZaxis()->GetXmax());
360 allSameLimits = sameLimitsX && sameLimitsY && sameLimitsZ;
365 Bool_t histoIsEmpty =
h->IsEmpty();
370 if (allHaveLabels && !histoIsEmpty) {
371 THashList* hlabelsX =
h->GetXaxis()->GetLabels();
372 THashList* hlabelsY = (dimension > 1) ?
h->GetYaxis()->GetLabels() :
nullptr;
373 THashList* hlabelsZ = (dimension > 2) ?
h->GetZaxis()->GetLabels() :
nullptr;
374 Bool_t haveOneLabelX = hlabelsX !=
nullptr;
375 Bool_t haveOneLabelY = hlabelsY !=
nullptr;
376 Bool_t haveOneLabelZ = hlabelsZ !=
nullptr;
377 Bool_t haveOneLabel = haveOneLabelX || haveOneLabelY || haveOneLabelZ;
379 if (foundLabelHist && allHaveLabels && !haveOneLabel) {
380 Warning(
"Merge",
"Not all histograms have labels. I will ignore labels,"
381 " falling back to bin numbering mode.");
384 allHaveLabels &= (haveOneLabel);
387 foundLabelHist =
kTRUE;
396 allHaveLabels &= consistentLabels;
397 if (!consistentLabels)
398 Warning(
"TH1Merger::ExamineHistogram",
"Histogram %s has inconsistent labels: %d is not consistent with %d",
399 h->GetName(), (
int)
type, (
int) labelAxisType );
400 if (
gDebug && consistentLabels)
401 Info(
"TH1Merger::ExamineHistogram",
"Histogram %s has consistent labels",
h->GetName() );
412 if (allHaveLabels && !labelAxisCanBeExtended) {
417 Info(
"TH1Merger::ExamineHistogram",
"Histogram %s to be merged is empty and we are merging with %s that has labels. Force the axis to be extended",
fH0->
GetName(),
h->GetName());
422 Info(
"TH1Merger::ExamineHistogram",
"Histogram %s to be merged has labels but corresponding axis cannot be extended - using bin numeric mode to merge. Call TH1::SetCanExtend(TH1::kAllAxes) if want to merge using label mode",
fH0->
GetName());
430 if (allHaveLabels ) {
432 Int_t non_zero_bins = 0;
434 if (hlabelsX && dimension == 1 && !
h->GetXaxis()->CanExtend()) {
435 Int_t nbins =
h->GetXaxis()->GetNbins();
437 for (
Int_t i = 1; i <= nbins; i++) {
438 if (
h->RetrieveBinContent(i) != 0 || (
h->fSumw2.fN &&
h->GetBinError(i) != 0) ) {
442 if (non_zero_bins > hlabelsX->
GetEntries() ) {
443 Warning(
"TH1Merger::ExamineHistograms",
"Histogram %s contains non-empty bins without labels - falling back to bin numbering mode",
h->GetName() );
450 if (dimension > 1 ) {
451 if (hlabelsX && !
h->GetXaxis()->CanExtend() && hlabelsX->
GetEntries() <
h->GetXaxis()->GetNbins()-1 ) {
452 Warning(
"TH1Merger::ExamineHistograms",
"Histogram %s has the X axis containing more than one bin without labels - falling back to bin numbering mode",
h->GetName() );
455 if (hlabelsY && !
h->GetYaxis()->CanExtend() && hlabelsY->
GetEntries() <
h->GetYaxis()->GetNbins()-1 ) {
456 Warning(
"TH1Merger::ExamineHistograms",
"Histogram %s has the Y axis containing more than one bin without labels - falling back to bin numbering mode",
h->GetName() );
459 if (hlabelsZ && !
h->GetZaxis()->CanExtend() && hlabelsZ->
GetEntries() <
h->GetZaxis()->GetNbins()-1 ) {
460 Warning(
"TH1Merger::ExamineHistograms",
"Histogram %s has the Z axis containing more than one bin without labels - falling back to bin numbering mode",
h->GetName() );
468 Info(
"TH1Merger::ExamineHistogram",
"Examine histogram %s - labels %d - same limits %d - axis found %d",
h->GetName(),allHaveLabels,allSameLimits,initialLimitsFound );
470 }
while ( (
h =
dynamic_cast<TH1*
> ( next() ) ) != NULL );
472 if (!
h && (*next) ) {
473 Error(
"Merge",
"Attempt to merge object of class: %s to a %s",
492 if (!initialLimitsFound) {
574 if (newLimitsX)
Info(
"DefineNewAxis",
"A new X axis has been defined Nbins=%d , [%f,%f]",
fH0->
fXaxis.
GetNbins(),
576 if (newLimitsY)
Info(
"DefineNewAxis",
"A new Y axis has been defined Nbins=%d , [%f,%f]",
fH0->
fYaxis.
GetNbins(),
578 if (newLimitsZ)
Info(
"DefineNewAxis",
"A new Z axis has been defined Nbins=%d , [%f,%f]",
fH0->
fZaxis.
GetNbins(),
590 if (!hsrc || !hsrc->
fBuffer || !hdes ) {
591 void *p1 = hsrc ? hsrc->
fBuffer : 0;
594 Warning(
"TH1Merger::CopyMerge",
"invalid inputs: %p, %p, %p, -> do nothing", hsrc, hdes, p1);
602 for (
Int_t i = 0; i < nbentries; i++)
606 auto h2 =
dynamic_cast<TH2 *
>(hdes);
608 for (
Int_t i = 0; i < nbentries; i++)
612 auto h3 =
dynamic_cast<TH3 *
>(hdes);
614 for (
Int_t i = 0; i < nbentries; i++)
623 TH1 *href = 0, *hist = 0;
628 while ((hist = (
TH1 *)nextref()) && !href) {
645 while ((hist = (
TH1 *)next())) {
648 Info(
"AutoP2BufferMerge",
"merging buffer of %s into %s", hist->GetName(), href->
GetName());
668 totstats[i] = stats[i] = 0;
678 while ((hist = (
TH1 *)next())) {
686 Info(
"TH1Merger::AutoP2Merge",
"all histograms look empty!");
692 Error(
"TH1Merger::AutoP2Merge",
"cannot create axes from %s", hist->
GetName());
696 while ((
h = (
TH1 *)next())) {
698 Error(
"TH1Merger::AutoP2Merge",
"cannot merge histogram %s: not merge compatible",
h->GetName());
719 while ((hist = (
TH1 *)next())) {
724 Info(
"TH1Merger::AutoP2Merge",
"merging histogram %s into %s (entries: %f)", hist->
GetName(),
fH0->
GetName(),
734 totstats[i] += stats[i];
765 while (
TH1* hist = (
TH1*)next()) {
770 Info(
"TH1Merger::BufferMerge",
"Merging histogram %s into %s",hist->GetName(),
fH0->
GetName() );
792 totstats[i] = stats[i] = 0;
798 while (
TH1* hist=(
TH1*)next()) {
803 Info(
"TH1Merger::SameAxesMerge",
"Merging histogram %s into %s",hist->GetName(),
fH0->
GetName() );
806 if (hist->IsEmpty())
continue;
809 hist->GetStats(stats);
811 totstats[i] += stats[i];
816 for (
Int_t ibin = 0; ibin < hist->fNcells; ibin++) {
841 while (
TH1* hist=(
TH1*)next()) {
844 Info(
"TH1Merger::DifferentAxesMerge",
"Merging histogram %s into %s",hist->GetName(),
fH0->
GetName() );
847 if (hist->IsEmpty())
continue;
850 hist->GetStats(stats);
852 totstats[i] += stats[i];
856 for (
Int_t ibin = 0; ibin < hist->fNcells; ibin++) {
861 Int_t binx,biny,binz;
862 hist->GetBinXYZ(ibin, binx, biny, binz);
865 if (binx <= 0 || binx >= hist->GetNbinsX() + 1) {
867 Error(
"TH1Merger::DifferentAxesMerge",
"Cannot merge histograms - the histograms %s can extend the X axis or have"
868 " different limits and underflows/overflows are present in the histogram %s.",
fH0->
GetName(),hist->GetName());
872 if (biny <= 0 || biny >= hist->GetNbinsY() + 1) {
874 Error(
"TH1Merger::DifferentAxesMerge",
"Cannot merge histograms - the histograms %s can extend the Y axis or have"
875 " different limits and underflows/overflows are present in the histogram %s.",
fH0->
GetName(),hist->GetName());
879 if (binz <= 0 || binz >= hist->GetNbinsZ() + 1) {
881 Error(
"TH1Merger::DifferentAxesMerge",
"Cannot merge histograms - the histograms %s can extend the Z axis or have"
882 " different limits and underflows/overflows are present in the histogram %s.",
fH0->
GetName(),hist->GetName());
901 Fatal(
"TH1Merger::LabelMerge",
"Fatal error merging histogram %s - bin number is %d and array size is %d",
921 if (!labels)
return kFALSE;
923 for (
const auto * obj: *labels) {
926 if (objList->GetSize() > 1 ) {
928 std::unordered_set<std::string>
s;
929 for (
const auto * o: *objList) {
930 auto ret =
s.insert(std::string(o->GetName() ));
931 if (!ret.second)
return kTRUE;
956 Warning(
"TH1Merger::CheckForDuplicateLabels",
"Histogram %s has duplicate labels in the x axis. "
957 "Bin contents will be merged in a single bin",hist->
GetName());
961 Warning(
"TH1Merger::CheckForDuplicateLabels",
"Histogram %s has duplicate labels in the y axis. "
962 "Bin contents will be merged in a single bin",hist->
GetName());
966 Warning(
"TH1Merger::CheckForDuplicateLabels",
"Histogram %s has duplicate labels in the z axis. "
967 "Bin contents will be merged in a single bin",hist->
GetName());
987 while (
TH1* hist=(
TH1*)next()) {
990 Info(
"TH1Merger::LabelMerge",
"Merging histogram %s into %s",hist->GetName(),
fH0->
GetName() );
993 if (hist->IsEmpty())
continue;
996 hist->GetStats(stats);
998 totstats[i] += stats[i];
1001 auto labelsX = hist->GetXaxis()->GetLabels();
1002 auto labelsY = hist->GetYaxis()->GetLabels();
1003 auto labelsZ = hist->GetZaxis()->GetLabels();
1004 R__ASSERT(!( labelsX ==
nullptr && labelsY ==
nullptr && labelsZ ==
nullptr));
1012 Info(
"TH1Merger::LabelMerge",
"Merging X axis in label mode");
1014 Info(
"TH1Merger::LabelMerge",
"Merging X axis in numeric mode");
1016 Info(
"TH1Merger::LabelMerge",
"Merging Y axis in label mode");
1017 else if (hist->GetDimension() > 1)
1018 Info(
"TH1Merger::LabelMerge",
"Merging Y axis in numeric mode");
1020 Info(
"TH1Merger::LabelMerge",
"Merging Z axis in label mode" );
1021 else if (hist->GetDimension() > 2)
1022 Info(
"TH1Merger::LabelMerge",
"Merging Z axis in numeric mode");
1031 std::cout <<
"Bins of original histograms\n";
1032 for (
int ix = 1; ix <=
fH0->
GetXaxis()->GetNbins(); ++ix) {
1033 for (
int iy = 1; iy <=
fH0->
GetYaxis()->GetNbins(); ++iy) {
1034 for (
int iz = 1; iz <=
fH0->
GetZaxis()->GetNbins(); ++iz) {
1036 std::cout <<
"bin" << ix <<
"," << iy <<
"," << iz
1042 for (
Int_t ibin = 0; ibin < hist->fNcells; ibin++) {
1047 Int_t binx,biny,binz;
1048 hist->GetBinXYZ(ibin, binx, biny, binz);
1051 const char * labelX = 0;
1052 const char * labelY = 0;
1053 const char * labelZ = 0;
1054 labelX=hist->GetXaxis()->GetBinLabel(binx);
1055 if (
fH0->
fDimension > 1) labelY = hist->GetYaxis()->GetBinLabel(biny);
1056 if (
fH0->
fDimension > 2) labelZ = hist->GetYaxis()->GetBinLabel(binz);
1066 if (binx == 0 &&
TString(labelX) ==
"" ) ix = 0;
1069 if (biny == 0 &&
TString(labelY) ==
"" ) iy = 0;
1073 if (binz == 0 &&
TString(labelZ) ==
"" ) iz = 0;
1107 Info(
"TH1Merge::LabelMerge",
"Merge bin [%d,%d,%d] with label [%s,%s,%s] into bin [%d,%d,%d]",
1108 binx,biny,binz,labelX,labelY,labelZ,ix,iy,iz);
1113 Fatal(
"TH1Merger::LabelMerge",
"Fatal error merging histogram %s - bin number is %d and array size is %d",
1132 return cu == 0 && e1sq == 0;
1157template<
class TProfileType>
1160 TProfileType *
p =
static_cast<TProfileType *
>(
fH0);
1161 p->fArray[pbin] +=
h->fArray[hbin];
1162 p->fSumw2.fArray[pbin] +=
h->fSumw2.fArray[hbin];
1163 p->fBinEntries.fArray[pbin] +=
h->fBinEntries.fArray[hbin];
1164 if (
p->fBinSumw2.fN) {
1165 if (
h->fBinSumw2.fN)
1166 p->fBinSumw2.fArray[pbin] +=
h->fBinSumw2.fArray[hbin];
1168 p->fBinSumw2.fArray[pbin] +=
h->fArray[hbin];
1171 Info(
"TH1Merge::MergeProfileBin",
"Merge bin %d of profile %s with content %f in bin %d - result is %f", hbin,
1172 h->GetName(),
h->fArray[hbin], pbin,
p->fArray[pbin]);
void Info(const char *location, const char *msgfmt,...)
Use this function for informational messages.
void Error(const char *location, const char *msgfmt,...)
Use this function in case an error occurred.
void Warning(const char *location, const char *msgfmt,...)
Use this function in warning situations.
void Fatal(const char *location, const char *msgfmt,...)
Use this function in case of a fatal error. It will abort the program.
winID h TVirtualViewer3D TVirtualGLPainter p
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t Int_t Int_t Window_t TString Int_t GCValues_t GetPrimarySelectionOwner GetDisplay GetScreen GetColormap GetNativeEvent const char const char dpyName wid window const char font_name cursor keysym reg const char only_if_exist regb h Point_t winding char text const char depth char const char Int_t count const char ColorStruct_t color const char Pixmap_t Pixmap_t PictureAttributes_t attr const char char ret_data h unsigned char height h Atom_t Int_t ULong_t ULong_t unsigned char prop_list Atom_t Atom_t Atom_t Time_t type
#define PRINTRANGE(a, b, bn)
void Set(Int_t n) override
Set size of this array to n doubles.
const Double_t * GetArray() const
Class to manage histogram axis.
const TArrayD * GetXbins() const
void SetCanExtend(Bool_t canExtend)
virtual Int_t FindBin(Double_t x)
Find bin number corresponding to abscissa x.
virtual void Set(Int_t nbins, Double_t xmin, Double_t xmax)
Initialize axis with fix bins.
Int_t GetLast() const
Return last bin on the axis i.e.
virtual void SetRange(Int_t first=0, Int_t last=0)
Set the viewing range for the axis using bin numbers.
Int_t GetFirst() const
Return first bin on the axis i.e.
THashList * GetLabels() const
void * New(ENewType defConstructor=kClassNew, Bool_t quiet=kFALSE) const
Return a pointer to a newly allocated object of this class.
virtual Int_t GetEntries() const
virtual Int_t GetSize() const
Return the capacity of the collection, i.e.
Bool_t AutoP2BufferMerge()
static Bool_t AxesHaveLimits(const TH1 *h)
static Int_t CheckForDuplicateLabels(const TH1 *hist)
Check if histogram has duplicate labels Return an integer with bit set correponding on the axis that ...
Bool_t AutoP2BuildAxes(TH1 *)
Determine final boundaries and number of bins for histograms created in power-of-2 autobin mode.
Bool_t DifferentAxesMerge()
Merged histogram when axis can be different.
TList fInputList
copy of fH0 - managed by this class
static Int_t FindFixBinNumber(Int_t ibin, const TAxis &inAxis, const TAxis &outAxis)
void CopyBuffer(TH1 *hsrc, TH1 *hdes)
static Bool_t IsBinEmpty(const TH1 *hist, Int_t bin)
helper function for merging
EMergerType ExamineHistograms()
Examine the list of histograms to find out which type of Merge we need to do Pass the input list cont...
static Bool_t HasDuplicateLabels(const THashList *labels)
Find a duplicate labels in an axis label list.
void MergeBin(const TH1 *hist, Int_t inbin, Int_t outbin)
Bool_t operator()()
Function performing the actual merge.
void DefineNewAxes()
Function to define new histogram axis when merging It is call only in case of merging with different ...
TH1 * fHClone
histogram on which the list is merged
Bool_t LabelMerge()
Merge histograms with labels.
void MergeProfileBin(const TProfileType *p, Int_t ibin, Int_t outbin)
TH1 is the base class of all histogram classes in ROOT.
virtual void SetDirectory(TDirectory *dir)
By default, when a histogram is created, it is added to the list of histogram objects in the current ...
Double_t * fBuffer
[fBufferSize] entry buffer
virtual Double_t GetBinCenter(Int_t bin) const
Return bin center for 1D histogram.
@ kNoAxis
NOTE: Must always be 0 !!!
Int_t fNcells
Number of bins(1D), cells (2D) +U/Overflows.
virtual void GetStats(Double_t *stats) const
fill the array stats from the contents of this histogram The array stats must be correctly dimensione...
void Copy(TObject &hnew) const override
Copy this histogram structure to newth1.
virtual void AddBinContent(Int_t bin)
Increment bin content by 1.
virtual Int_t GetDimension() const
@ kAutoBinPTwo
different than 1.
virtual void Reset(Option_t *option="")
Reset this histogram: contents, errors, etc.
TAxis * GetXaxis()
Get the behaviour adopted by the object about the statoverflows. See EStatOverflows for more informat...
static Bool_t RecomputeAxisLimits(TAxis &destAxis, const TAxis &anAxis)
Finds new limits for the axis for the Merge function.
virtual void PutStats(Double_t *stats)
Replace current statistics with the values in array stats.
virtual Int_t GetBin(Int_t binx, Int_t biny=0, Int_t binz=0) const
Return Global bin number corresponding to binx,y,z.
static Bool_t SameLimitsAndNBins(const TAxis &axis1, const TAxis &axis2)
Same limits and bins.
virtual Double_t RetrieveBinContent(Int_t bin) const
Raw retrieval of bin content on internal data structure see convention for numbering bins in TH1::Get...
Int_t fDimension
! Histogram dimension (1, 2 or 3 dim)
virtual void SetBinsLength(Int_t=-1)
virtual Int_t Fill(Double_t x)
Increment bin with abscissa X by 1.
virtual Double_t GetBinErrorSqUnchecked(Int_t bin) const
virtual Double_t GetEntries() const
Return the current number of entries.
virtual UInt_t SetCanExtend(UInt_t extendBitMask)
Make the histogram axes extendable / not extendable according to the bit mask returns the previous bi...
Bool_t IsEmpty() const
Check if a histogram is empty (this is a protected method used mainly by TH1Merger )
@ kNstat
Size of statistics data (up to TProfile3D)
TAxis fZaxis
Z axis descriptor.
TClass * IsA() const override
TAxis fXaxis
X axis descriptor.
TArrayD fSumw2
Array of sum of squares of weights.
virtual Int_t GetSumw2N() const
virtual Int_t FindBin(Double_t x, Double_t y=0, Double_t z=0)
Return Global bin number corresponding to x,y,z.
TObject * Clone(const char *newname="") const override
Make a complete copy of the underlying object.
TAxis fYaxis
Y axis descriptor.
virtual void SetBins(Int_t nx, Double_t xmin, Double_t xmax)
Redefine x axis parameters.
virtual void Sumw2(Bool_t flag=kTRUE)
Create structure to store sum of squares of weights.
virtual void SetEntries(Double_t n)
virtual Int_t BufferEmpty(Int_t action=0)
Fill histogram with all entries in the buffer.
Service class for 2-D histogram classes.
The 3-D histogram classes derived from the 1-D histogram classes.
THashList implements a hybrid collection class consisting of a hash table and a list to store TObject...
const TList * GetListForObject(const char *name) const
Return the THashTable's list (bucket) in which obj can be found based on its hash; see THashTable::Ge...
void Add(TObject *obj) override
TObject * Remove(TObject *obj) override
Remove object from the list.
void AddFirst(TObject *obj) override
Add object at the beginning of the list.
const char * GetName() const override
Returns name of object.
R__ALWAYS_INLINE Bool_t TestBit(UInt_t f) const
virtual const char * ClassName() const
Returns name of class to which the object belongs.
void SetBit(UInt_t f, Bool_t set)
Set or unset the user status bits as specified in f.
Profile2D histograms are used to display the mean value of Z and its error for each cell in X,...
Profile3D histograms are used to display the mean value of T and its RMS for each cell in X,...
void swap(RDirectoryEntry &e1, RDirectoryEntry &e2) noexcept
static constexpr double s