| 16 |
|
// Method by pointer |
| 17 |
|
TH2F* eff2(TH2F* h1, TH2F* h2, const char* name) { |
| 18 |
|
|
| 19 |
< |
// first, verify that all histograms have same binning |
| 20 |
< |
// nx is the number of visible bins |
| 21 |
< |
// nxtot = nx+2 includes underflow and overflow |
| 22 |
< |
Int_t nx = h1->GetNbinsX(); |
| 23 |
< |
if (h2->GetNbinsX() != nx) { |
| 24 |
< |
std::cout << "Histograms must have same number of bins" << std::endl; |
| 25 |
< |
return 0; |
| 26 |
< |
} |
| 27 |
< |
|
| 28 |
< |
// get the new histogram |
| 29 |
< |
TH2F* temp = (TH2F*) h1->Clone(name); |
| 30 |
< |
temp->SetTitle(name); |
| 31 |
< |
temp->Reset(); |
| 32 |
< |
temp->Sumw2(); |
| 19 |
> |
// first, verify that all histograms have same binning |
| 20 |
> |
// nx is the number of visible bins |
| 21 |
> |
// nxtot = nx+2 includes underflow and overflow |
| 22 |
> |
Int_t nx = h1->GetNbinsX(); |
| 23 |
> |
if (h2->GetNbinsX() != nx) { |
| 24 |
> |
std::cout << "Histograms must have same number of bins" << std::endl; |
| 25 |
> |
return 0; |
| 26 |
> |
} |
| 27 |
> |
|
| 28 |
> |
// get the new histogram |
| 29 |
> |
TH2F* temp = (TH2F*) h1->Clone(name); |
| 30 |
> |
temp->SetTitle(name); |
| 31 |
> |
temp->Reset(); |
| 32 |
> |
temp->Sumw2(); |
| 33 |
|
|
| 34 |
< |
// Do the calculation |
| 35 |
< |
temp->Divide(h2, h1, 1., 1., "B"); |
| 34 |
> |
// Do the calculation |
| 35 |
> |
temp->Divide(h2, h1, 1., 1., "B"); |
| 36 |
|
|
| 37 |
< |
// Done |
| 38 |
< |
return temp; |
| 37 |
> |
// Done |
| 38 |
> |
return temp; |
| 39 |
|
} |
| 40 |
|
|
| 41 |
|
|
| 42 |
|
// Method by name |
| 43 |
|
TH2F* eff2(const char* name1, const char* name2, const char* name) { |
| 44 |
|
|
| 45 |
< |
// Get a list of object and their iterator |
| 46 |
< |
TList* list = gDirectory->GetList() ; |
| 47 |
< |
TIterator* iter = list->MakeIterator(); |
| 48 |
< |
|
| 49 |
< |
// Loop over objects, set the pointers |
| 50 |
< |
TObject* obj; |
| 51 |
< |
TH2F* h1 = 0; |
| 52 |
< |
TH2F* h2 = 0; |
| 53 |
< |
TString str1 = Form("%s", name1); |
| 54 |
< |
TString str2 = Form("%s", name2); |
| 55 |
< |
while (obj = iter->Next()) { |
| 56 |
< |
TString objName = obj->GetName(); |
| 57 |
< |
if (objName == str1) h1 = (TH2F*) obj; |
| 58 |
< |
if (objName == str2) h2 = (TH2F*) obj; |
| 59 |
< |
} |
| 60 |
< |
|
| 61 |
< |
// quit if not found |
| 62 |
< |
if (h1 == 0) { |
| 63 |
< |
std::cout << "Histogram " << name1 << " not found" << std::endl; |
| 64 |
< |
return 0; |
| 65 |
< |
} |
| 66 |
< |
if (h2 == 0) { |
| 67 |
< |
std::cout << "Histogram " << name2 << " not found" << std::endl; |
| 68 |
< |
return 0; |
| 69 |
< |
} |
| 70 |
< |
|
| 71 |
< |
// Call the method by pointer |
| 72 |
< |
TH2F* temp = eff2(h1, h2, name); |
| 73 |
< |
return temp; |
| 45 |
> |
// Get a list of object and their iterator |
| 46 |
> |
TList* list = gDirectory->GetList() ; |
| 47 |
> |
TIterator* iter = list->MakeIterator(); |
| 48 |
> |
|
| 49 |
> |
// Loop over objects, set the pointers |
| 50 |
> |
TObject* obj; |
| 51 |
> |
TH2F* h1 = 0; |
| 52 |
> |
TH2F* h2 = 0; |
| 53 |
> |
TString str1 = Form("%s", name1); |
| 54 |
> |
TString str2 = Form("%s", name2); |
| 55 |
> |
while ((obj = iter->Next())) { |
| 56 |
> |
TString objName = obj->GetName(); |
| 57 |
> |
if (objName == str1) h1 = (TH2F*) obj; |
| 58 |
> |
if (objName == str2) h2 = (TH2F*) obj; |
| 59 |
> |
} |
| 60 |
> |
|
| 61 |
> |
// quit if not found |
| 62 |
> |
if (h1 == 0) { |
| 63 |
> |
std::cout << "Histogram " << name1 << " not found" << std::endl; |
| 64 |
> |
return 0; |
| 65 |
> |
} |
| 66 |
> |
if (h2 == 0) { |
| 67 |
> |
std::cout << "Histogram " << name2 << " not found" << std::endl; |
| 68 |
> |
return 0; |
| 69 |
> |
} |
| 70 |
> |
|
| 71 |
> |
// Call the method by pointer |
| 72 |
> |
TH2F* temp = eff2(h1, h2, name); |
| 73 |
> |
return temp; |
| 74 |
|
} |
