| 1 |
#include <iostream>
|
| 2 |
|
| 3 |
#include "makeProjectionPlots.h"
|
| 4 |
#include "eff.h"
|
| 5 |
|
| 6 |
#include "TH1.h"
|
| 7 |
#include "TAxis.h"
|
| 8 |
#include "TArrayD.h"
|
| 9 |
#include "TCanvas.h"
|
| 10 |
|
| 11 |
#include <math.h>
|
| 12 |
|
| 13 |
using namespace std;
|
| 14 |
|
| 15 |
TH1F* makeProjectionPlots (TH2F* hist, std::string axis) {
|
| 16 |
|
| 17 |
if (axis != "X" && axis != "Y") {
|
| 18 |
std::cout << "You've requested a projection onto a non-existent axis. Exiting." << std::endl;
|
| 19 |
exit (1);
|
| 20 |
}
|
| 21 |
|
| 22 |
// need to add 2 to number of bins to account for underflow/overflow
|
| 23 |
int nxbins = hist->GetNbinsX();
|
| 24 |
int nybins = hist->GetNbinsY();
|
| 25 |
if (axis == "Y") {
|
| 26 |
nxbins = hist->GetNbinsY();
|
| 27 |
nybins = hist->GetNbinsX();
|
| 28 |
}
|
| 29 |
|
| 30 |
TAxis* xaxis = hist->GetXaxis();
|
| 31 |
if (axis == "Y")
|
| 32 |
xaxis = hist->GetYaxis();
|
| 33 |
|
| 34 |
const TArrayD* xbins = xaxis->GetXbins();
|
| 35 |
const int xsize = xbins->GetSize();
|
| 36 |
Double_t binsx[xsize];
|
| 37 |
for (int ibin = 0; ibin < xsize; ibin++)
|
| 38 |
binsx[ibin] = xbins->At(ibin);
|
| 39 |
|
| 40 |
TH1F* xproj = new TH1F("proj", "proj", xsize-1, binsx);
|
| 41 |
xproj->GetXaxis()->ImportAttributes(xaxis);
|
| 42 |
|
| 43 |
// for each bin in x, sum column in y
|
| 44 |
for (int ix = 1; ix < nxbins+1; ix++) {
|
| 45 |
|
| 46 |
Double_t sum = 0.;
|
| 47 |
Double_t error = 0.;
|
| 48 |
for (int iy = 1; iy < nybins+1; iy++) {
|
| 49 |
|
| 50 |
int bin = hist->GetBin(ix, iy); // get absolute bin number from x,y bin count
|
| 51 |
if (axis == "Y")
|
| 52 |
bin = hist->GetBin(iy, ix);
|
| 53 |
sum += hist->GetBinContent(bin);
|
| 54 |
error += hist->GetBinError(bin) * hist->GetBinError(bin);
|
| 55 |
}
|
| 56 |
xproj->SetBinContent(ix, sum/nybins);
|
| 57 |
xproj->SetBinError(ix, sqrt(error));
|
| 58 |
}
|
| 59 |
|
| 60 |
return xproj;
|
| 61 |
}
|
| 62 |
|
| 63 |
TH1F* makeProjectionPlots (TH2F* numhist, TH2F* denhist, std::string axis) {
|
| 64 |
|
| 65 |
if (axis != "X" && axis != "Y") {
|
| 66 |
std::cout << "You've requested a projection onto a non-existent axis. Exiting." << std::endl;
|
| 67 |
exit (1);
|
| 68 |
}
|
| 69 |
|
| 70 |
// need to add 2 to number of bins to account for underflow/overflow
|
| 71 |
int nxbins = numhist->GetNbinsX();
|
| 72 |
int nybins = numhist->GetNbinsY();
|
| 73 |
if (axis == "Y") {
|
| 74 |
nxbins = numhist->GetNbinsY();
|
| 75 |
nybins = numhist->GetNbinsX();
|
| 76 |
}
|
| 77 |
|
| 78 |
TAxis* xaxis = numhist->GetXaxis();
|
| 79 |
if (axis == "Y")
|
| 80 |
xaxis = numhist->GetYaxis();
|
| 81 |
|
| 82 |
const TArrayD* xbins = xaxis->GetXbins();
|
| 83 |
double* binsx = NULL;
|
| 84 |
int xsize = xbins->GetSize();
|
| 85 |
binsx = new double[xsize];
|
| 86 |
for (int ibin = 0; ibin < xsize; ibin++)
|
| 87 |
binsx[ibin] = xbins->At(ibin);
|
| 88 |
|
| 89 |
TH1F* numproj = new TH1F("numproj", "numproj", xsize-1, binsx);
|
| 90 |
numproj->GetXaxis()->ImportAttributes(xaxis);
|
| 91 |
|
| 92 |
TH1F* denproj = new TH1F("denproj", "denproj", xsize-1, binsx);
|
| 93 |
denproj->GetXaxis()->ImportAttributes(xaxis);
|
| 94 |
|
| 95 |
// for each bin in x, sum column in y
|
| 96 |
for (int ix = 1; ix < nxbins+1; ix++) {
|
| 97 |
|
| 98 |
Double_t numsum = 0.;
|
| 99 |
Double_t numerror = 0.;
|
| 100 |
Double_t densum = 0.;
|
| 101 |
Double_t denerror = 0.;
|
| 102 |
for (int iy = 1; iy < nybins+1; iy++) {
|
| 103 |
|
| 104 |
int bin = numhist->GetBin(ix, iy); // get absolute bin number from x,y bin count
|
| 105 |
if (axis == "Y")
|
| 106 |
bin = numhist->GetBin(iy, ix);
|
| 107 |
numsum += numhist->GetBinContent(bin);
|
| 108 |
numerror += numhist->GetBinError(bin) * numhist->GetBinError(bin);
|
| 109 |
densum += denhist->GetBinContent(bin);
|
| 110 |
denerror += denhist->GetBinError(bin) * denhist->GetBinError(bin);
|
| 111 |
}
|
| 112 |
numproj->SetBinContent(ix, numsum);
|
| 113 |
numproj->SetBinError(ix, sqrt(numerror));
|
| 114 |
denproj->SetBinContent(ix, densum);
|
| 115 |
denproj->SetBinError(ix, sqrt(denerror));
|
| 116 |
}
|
| 117 |
|
| 118 |
TH1F* proj = eff(denproj, numproj);
|
| 119 |
proj->GetXaxis()->ImportAttributes(xaxis);
|
| 120 |
|
| 121 |
delete numproj;
|
| 122 |
delete denproj;
|
| 123 |
|
| 124 |
return proj;
|
| 125 |
}
|
| 126 |
|
| 127 |
void compareRFhists (TH2F* old_hist, TH2F* new_hist) {
|
| 128 |
|
| 129 |
TH2F* diff_hist = (TH2F*)new_hist->Clone();
|
| 130 |
diff_hist->Add(old_hist, -1.);
|
| 131 |
|
| 132 |
TCanvas* cx = new TCanvas();
|
| 133 |
cx->cd();
|
| 134 |
diff_hist->Draw("colz");
|
| 135 |
}
|
| 136 |
|
| 137 |
void clearHists (TH2F* hist) {
|
| 138 |
|
| 139 |
delete hist;
|
| 140 |
}
|
