Hi Zaldy, Instead of: h_2->SetFillColor(4); do: h_2->SetLineColor(4); h_2->SetFillStyle(0); Cheers, Olivier On Thu, 18 Mar 2004, zaldy wrote: > > Dear Rene, > > > The following script works well. But the box histogram covers some points > on my plot specially if the error bar is very large. In most cases, many > points of another histogram cannot be seen. > > One way I did is to > control the box width or height. But I noticed that the best result can be > obtained if we make the box in a "No Fill" state; just a drawing of a box > with only the borders are drawn. > > This feature is similar option in IGBOX of Higz. > > How do we proceed with this? Or is there a switch like this: > > h->SetNoFill(kFALSE); > > Thanks... > > > > > Hi Zaldy, > > > > You were setting a marker size such that the marker was hidding the size > > of the error box when using the option "e2". > > See below a simplified variant of your script using a THStack. > > > > Rene > > > > void hsample() > > { > > TCanvas* c1 = new TCanvas("c1","Modulation"); > > Int_t NPoints=10000; > > > > TH1F * h_1 = new TH1F("h_1","Sample",10,-0.5,0.5); > > TH1F * h_2 = new TH1F("h_2","Sample",10,-0.5,0.5); > > > > for (int i = 0; i < NPoints; ++i) { > > double x = gRandom->Gaus(-0.5,0.5); //<------------Data for example > > double y = gRandom->Gaus(-0.5,0.5); //<------------MonteCarlo > > h_1->Fill(x); > > h_2->Fill(y); > > } > > > > h_2->SetFillColor(4); > > gStyle->SetErrorX(0.25); > > THStack *s = new THStack("s","MC and data;Layer;Count"); > > s->Add(h_1); > > s->Add(h_2,"e2"); > > s->Draw("nostack"); > > } > > > > > > zaldy wrote: > > > > > > Dear Rene, > > > > > > I post this mail at the roottalk mailing list. > > > But it seems, what I want is not quite clear. > > > > > > I want to superimpose MonteCarlo and Real Data such that I want the > > > montecarlo to be drawn in box-type, with errors represented by the > > > dimension of the box. > > > > > > I have a simple script to reproduce what I want. See below. > > > > > > My problem is I cannot control the error size(dimension of the box) in the > > > montecarlo data. From the Manual it says... > > > > > > h_2->Draw("E2 same"); > > > > > > can do it. But I just can not make it. > > > > > > Hope to have your reply > > > Thanks. > > > > > > Zaldy > > > ---am using Root Version 3.04/02 18 December 2002 > > > ---gcc 2.91.6 > > > > > > ------------------- > > > > > > void hsample() > > > { > > > gROOT->Reset(); > > > TCanvas* c1 = new TCanvas("c1","Modulation"); > > > Int_t NPoints=10000; > > > > > > TH1F * h_1 = new TH1F("h_1","Sample",10,-0.5,0.5); > > > TH1F * h_2 = new TH1F("h_2","Sample",10,-0.5,0.5); > > > > > > for (int i = 0; i < NPoints; ++i) { > > > double x = gRandom->Gaus(-0.5,0.5); //<------------Data for example > > > double y = gRandom->Gaus(-0.5,0.5); //<------------MonteCarlo > > > h_1->Fill(x); > > > h_2->Fill(y); > > > } > > > > > > h_1->SetXTitle("Layer"); > > > h_1->SetYTitle("Count"); > > > > > > h_1->SetMarkerStyle(21); > > > h_1->Draw(); > > > h_2->SetLineColor(4); > > > h_2->SetMarkerStyle(25); > > > h_2->SetMarkerSize(5.); > > > h_2->Draw("E0 same"); > > > } > > > > > > > > > > > > On Mon, 15 Mar 2004, zaldy wrote: > > > > > > > > > > > Dear Rooters, > > > > > > > > > > > > I just wanted to draw a point from the TH1F object. > > > > I want it to be a box such that the error bars represents the width and > > > > length of the box. This is very helpful if we want to compare a MonteCarlo > > > > Data and a true data. > > > > > > > > I tried something like this: > > > > > > > > TH1F * h = new TH1F(....); > > > > ..... > > > > fill the histogram > > > > ...... > > > > h->SetMarkerStyle(25); > > > > h->Draw("e2"); > > > > > > > > There is actually a box on a coordinate but it does not represent the > > > > errors of the histogram. SO if I want to have a logscale(X or Y), the box > > > > does not response to the logscale. > > > > > > > > Can you suggest how to do it? > > > > > > > > > > > > Thanks. > > > > > > > > > > > > > > > > > > -- > > > > > > -------------------------------------------------------- > > > Zaldy A. Nawang > > > PS Users Room 2 > > > Yon Gokan, > > > E362, Neutrino Group, > > > IPNS, KEK, > > > Japan > > > > > > e-mail: zaldy@neutrino.kek.jp > > > Tel. No. : (81) 029864 - 5387 > > > -------------------------------------------------------- > > > > -- Org: CERN - European Laboratory for Particle Physics. Mail: 1211 Geneve 23 - Switzerland Mailbox: J25910 E-Mail: Olivier.Couet@cern.ch Phone: +41 22 7676522 WWW: http://cern.ch/Olivier.Couet/ Fax: +41 22 7677155
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