2 * Script to draw the energy loss fits from the output file of
3 * AliFMDELossFitter(Task).
5 * @ingroup pwg2_forward_analysis_scripts
18 //____________________________________________________________________
22 const char* pdfName = "FitResults.pdf";
24 //____________________________________________________________________
26 * Open a file. The file is expected to contain the directory
44 * | +- FMD1I_edist (TH1)
49 * @param fname File to open
51 * @return Pointer to the list of objects
53 * @ingroup pwg2_forward_analysis_scripts
55 TList* OpenFile(const char* fname)
57 TFile* file = TFile::Open(fname, "READ");
59 Error("DrawFits", "Couldn't open %s", fname);
63 TList* forward = static_cast<TList*>(file->Get("ForwardResults"));
64 // static_cast<TList*>(file->Get("PWG2forwardDnDeta/Forward"));
66 Error("DrawFits", "Couldn't get forward list from %s", fname);
70 fitter = static_cast<TList*>(forward->FindObject("fmdEnergyFitter"));
72 Error("DrawFits", "Couldn't get fitter folder");
77 //____________________________________________________________________
79 * Open file if not done already
81 * @param fname File to open
83 * @return List of fits
85 * @ingroup pwg2_forward_analysis_scripts
87 TList* CheckFitter(const char* fname="AnalysisResults.root")
89 if (!fitter) return OpenFile(fname);
93 //____________________________________________________________________
95 * Make canvas if not done already
100 * @ingroup pwg2_forward_analysis_scripts
102 TCanvas* CheckCanvas()
104 if (canvas) return canvas;
106 gStyle->SetOptFit(111111);
107 gStyle->SetTitleFillColor(0);
108 gStyle->SetTitleBorderSize(0);
109 gStyle->SetTitleX(0);
110 gStyle->SetTitleY(.9);
111 gStyle->SetTitleW(.4);
112 gStyle->SetTitleH(.1);
113 gStyle->SetStatW(0.2);
114 gStyle->SetStatH(0.2);
115 gStyle->SetStatColor(0);
116 gStyle->SetStatBorderSize(1);
117 gStyle->SetOptTitle(0);
118 gStyle->SetOptFit(1111);
119 gStyle->SetStatW(0.3);
120 gStyle->SetStatH(0.15);
121 gStyle->SetStatColor(0);
122 gStyle->SetStatBorderSize(1);
124 canvas = new TCanvas("c", "C", Int_t(800 / TMath::Sqrt(2)), 800);
125 canvas->SetFillColor(0);
126 canvas->SetBorderMode(0);
127 canvas->SetBorderSize(0);
128 canvas->SetBottomMargin(0.15);
132 //____________________________________________________________________
138 * @ingroup pwg2_forward_analysis_scripts
140 void DrawSummary(const char* fname="forward_eloss.root")
142 if (!CheckFitter(fname)) {
143 Error("DrawFits", "File not opened");
146 if (!CheckCanvas()) {
147 Error("DrawFits", "No canvas");
160 stacks.Add(chi2nu = static_cast<THStack*>(fitter->FindObject("chi2")));
161 stacks.Add(c = static_cast<THStack*>(fitter->FindObject("c")));
162 stacks.Add(delta = static_cast<THStack*>(fitter->FindObject("delta")));
163 stacks.Add(xi = static_cast<THStack*>(fitter->FindObject("xi")));
164 stacks.Add(sigma = static_cast<THStack*>(fitter->FindObject("sigma")));
165 stacks.Add(sigman = static_cast<THStack*>(fitter->FindObject("sigman")));
166 stacks.Add(n = static_cast<THStack*>(fitter->FindObject("n")));
167 Int_t baseA = stacks.GetEntries()+1;
170 TObject* o = fitter->FindObject(Form("a%d",i++));
172 Info("DrawFits", "Adding %s", o->GetName());
176 Int_t nMax = stacks.GetEntries();
177 for (Int_t i = nMax-1; i >= baseA; i--) {
178 THStack* stack = static_cast<THStack*>(stacks.At(i));
179 TIter nextH(stack->GetHists());
181 Bool_t hasData = kFALSE;
182 while ((hist = static_cast<TH1*>(nextH())))
183 if (hist->Integral() > 0) hasData = kTRUE;
184 if (!hasData) nMax--;
187 canvas->SetRightMargin(0.05);
188 canvas->SetTopMargin(0.05);
189 canvas->Divide(2, (nMax+1)/2, 0.1, 0, 0);
195 while ((stack = static_cast<THStack*>(next()))) {
197 TVirtualPad* p = canvas->cd(1+i/5 + 2*(i%5));
198 p->SetLeftMargin(.15);
202 stack->Draw("nostack");
203 stack->GetHistogram()->SetYTitle(stack->GetTitle());
204 stack->GetHistogram()->SetXTitle("#eta");
206 TAxis* yaxis = stack->GetHistogram()->GetYaxis();
207 if (i == 0) yaxis->SetRangeUser(0,20); // Chi2
208 if (i == 1) stack->SetMaximum(1); // c
209 if (i == 2) stack->SetMaximum(1); // delta
210 if (i == 3) stack->SetMaximum(0.1); // xi
211 if (i == 4 || i == 5) stack->SetMaximum(0.5); // sigma{,n}
212 if (i == 7) stack->SetMaximum(0.5); // a
213 yaxis->SetTitleSize(0.15);
214 yaxis->SetLabelSize(0.08);
215 yaxis->SetTitleOffset(0.35);
216 yaxis->SetNdivisions(5);
218 TAxis* xaxis = stack->GetHistogram()->GetXaxis();
219 xaxis->SetTitleSize(0.15);
220 xaxis->SetLabelSize(0.08);
221 xaxis->SetTitleOffset(0.35);
222 xaxis->SetNdivisions(10);
225 stack->Draw("nostack");
230 canvas->Print(pdfName, "Title:Fit summary");
233 //____________________________________________________________________
239 * @ingroup pwg2_forward_analysis_scripts
241 void DrawRings(const char* fname="AnalysisResults.root")
243 if (!CheckFitter(fname)) {
244 Error("DrawFits", "File not opened");
247 if (!CheckCanvas()) {
248 Error("DrawFits", "No canvas");
254 canvas->Divide(1, 5,0,0);
256 const char* dets[] = { "FMD1I", "FMD2I", "FMD2O", "FMD3I", "FMD3O", 0 };
257 for (Int_t i = 0; i < 5; i++) {
258 TVirtualPad* p = canvas->cd(i+1);
263 TList* d = static_cast<TList*>(fitter->FindObject(dets[i]));
265 Warning("DrawFits", "List %s not found", dets[i]);
268 TH1* edist = static_cast<TH1*>(d->FindObject(Form("%s_edist", dets[i])));
270 Warning("DrawFits", "Histogram %s_edist not found", dets[i]);
275 TIter nextF(edist->GetListOfFunctions());
276 while ((f = static_cast<TF1*>(nextF()))) {
277 Double_t chi2 = f->GetChisquare();
278 Int_t ndf = f->GetNDF();
279 Printf("%s %s:\n Range: %f-%f\n"
280 "chi^2/ndf= %f / %d = %f",
281 edist->GetName(), f->GetName(),
282 f->GetXmin(), f->GetXmax(), chi2, ndf,
283 (ndf > 0) ? chi2/ndf : 0);
284 for (Int_t j = 0; j < f->GetNpar(); j++) {
285 Printf(" %-20s : %9.4f +/- %9.4f",
286 f->GetParName(j), f->GetParameter(j), f->GetParError(j));
292 canvas->Print(pdfName, "Title:Fit to rings");
295 //____________________________________________________________________
297 * Draw fits in eta bins
301 * @ingroup pwg2_forward_analysis_scripts
303 void DrawEtaBins(const char* fname="AnalysisResults.root")
305 if (!CheckFitter(fname)) {
306 Error("DrawFits", "File not opened");
309 if (!CheckCanvas()) {
310 Error("DrawFits", "No canvas");
314 canvas->Divide(2,2,0,0);
316 for (UShort_t d=1; d<=3; d++) {
317 UShort_t nQ = (d == 1 ? 1 : 2);
318 for (UShort_t q = 0; q < nQ; q++) {
319 Char_t r = (q == 0 ? 'I' : 'O');
322 static_cast<TList*>(fitter->FindObject(Form("FMD%d%c",d,r)));
324 Error("PrintFits", "Couldn't get ring FMD%d%c", d,r);
327 TList* edists = static_cast<TList*>(ring->FindObject("EDists"));
329 Error("PrintFits", "Couldn't get EDists list for FMD%d%c", d,r);
336 while ((dist = static_cast<TH1*>(next()))) {
340 canvas->Print(pdfName, Form("Title:FMD%d%c page %2d", d,r,j));
342 TVirtualPad* p = canvas->cd(++i);
343 p->SetFillColor(kWhite);
347 dist->SetMaximum(15);
353 for (; i <= 4; i++) {
354 TVirtualPad* p = canvas->cd(i);
356 p->SetFillColor(kMagenta-3);
360 canvas->Print(pdfName, Form("FMD%d%c page %2d", d,r,j++));
366 //____________________________________________________________________
368 * Draw energy loss fits to a multi-page PDF
370 * The input file is the result of running AliFMDELossFitter -
371 * either directly via AliFMDELossFitterTask or as part of a larger
372 * train (AliForwardMultiplicityTask or AliForwardMCMultiplicityTask).
383 * +- sigman (THStack)
389 * | +- FMD1I_edist (TH1)
390 * | +- EDists (TList)
396 * @ingroup pwg2_forward_analysis_scripts
399 DrawAnaELoss(const char* fname="forward_eloss.root")
401 if (!CheckCanvas()) {
402 Error("DrawFits", "No canvas");
405 canvas->Print(Form("%s[", pdfName));
409 canvas->Print(Form("%s]", pdfName));