RE: Problem with error bands on one/several histos

From: Michele Selvaggi <Michele.Selvaggi_at_cern.ch>
Date: Wed, 23 Nov 2011 15:16:21 +0000

Hello,

thanks for the quick reply. But what you suggest is solving my first problem, but not the fact that the error is unbounded below.

Cheers

Michele

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From: Olivier Couet
Sent: 23 November 2011 16:10
To: Michele Selvaggi
Cc: roottalk (Mailing list discussing all aspects of the ROOT system.) Subject: Re: [ROOT] Problem with error bands on one/several histos

use E3 instead of E4.
See the explanation here:

http://root.cern.ch/root/html/THistPainter.html#HP09

On Nov 23, 2011, at 4:05 PM, Michele Selvaggi wrote:

TH1F* R0      =  new TH1F("R0","R0",10,0.5,10.5);
TH1F* R1      =  new TH1F("R1","R1",10,0.5,10.5);

for(int k=1;k<11;k++){
 R0 -> Fill (k,100);
 R1 -> Fill (k,10);
  }

TCanvas c;
c.cd();

R0->SetMinimum(0);
R0->SetMaximum(200);

R0->SetFillColor(kGray+1);
R0->DrawCopy("e4");

R0->SetMarkerSize(0);
R0->SetLineColor(kBlack);
R0->SetLineWidth(2);
R0->Draw("same hist CL");

R1->SetFillColor(kRed-7);

R1->SetFillStyle(3002);
R1->DrawCopy("same e4");

R1->SetMarkerSize(0);
R1->SetLineColor(kRed);
R1->SetLineWidth(2);
R1->Draw("same hist CL");

Received on Wed Nov 23 2011 - 16:16:27 CET