Re: [ROOT] GetXaxis()->SetTitle().

From: Rene Brun (Rene.Brun@cern.ch)
Date: Mon Jan 08 2001 - 14:47:24 MET

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Hi Giuseppe,
See example in $ROOTSYS/tutorials/graph.C

http://root.cern.ch/root/html/examples/graph.C.html

Rene Brun

Giuseppe.LoRe@ct.infn.it wrote:
> 
> Hi, i have a little problem with TGraph.
> How can i put a title to an axis?
> I try with ...->GetXaxis()->SetTitle("..") but i obtain
> Error: illegal pointer to class object GetXaxis() 0x0 122.
> 
> TGraph *mltplct_gr1 = new TGraph(12, Zv, z1);
> mltplct_gr1->SetLineColor(2);
> mltplct_gr1->SetLineWidth(2);
> mltplct_gr1->SetMarkerColor(4);
> mltplct_gr1->SetMarkerStyle(21);
> mltplct_gr1->GetXaxis()->SetTitle("Zv");
> mltplct_gr1->SetTitle("Moltiplicity versus primary vertex position\n");
> mltplct_gr1->Draw("ACP");
> 
> Best regards, Giuseppe Lo Re.

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