Re: Probably doing something wrong, but ...

From: Rene Brun (Rene.Brun@cern.ch)
Date: Mon Mar 03 1997 - 14:56:00 MET


Chris Green wrote:
> 
> Hi,
> 
> Can someone tell me what's wrong with this:
> 
> TH2F *h1 = new TH2F("hf1","Total Cross-sections at 161 GeV",71,19.5,90.5,71,19.5,90.5);
> TH2F *h2 = new TH2F();
> h1->Copy(h2);
> h2->TNamed("h2","Left-handed Cross-sections at 161 GeV");
> 

You can do, either:
 TH2F *h1 = new TH2F("hf1","Total Cross-sections at                                            161GeV",71,19.5,90.5,71,19.5,90.5);
 TH2F *h2 = new TH2F();
 h1->Copy(*h2);
 h2->SetName("h2");
 h2->SetTitle("Left-handed Cross-sections at 161 GeV");
or:
 TH2F h1("hf1","Total Cross-sections at 161                                        GeV",71,19.5,90.5,71,19.5,90.5);
 TH2F h2();
 h1.Copy(h2);
 h2.SetName("h2");
 h2.SetTitle("Left-handed Cross-sections at 161 GeV");
 
In version 1.00, one can do directly:
 TH2F h2 = h1;

Rene Brun



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