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hlabels1.C File Reference

1-D histograms with alphanumeric labels More...

Go to the source code of this file.

Detailed Description

1-D histograms with alphanumeric labels

pict1_hlabels1.C.png
TCanvas *hlabels1()
{
const Int_t nx = 20;
const char *people[nx] = {"Jean","Pierre","Marie","Odile","Sebastien",
"Fons","Rene","Nicolas","Xavier","Greg","Bjarne","Anton","Otto",
"Eddy","Peter","Pasha","Philippe","Suzanne","Jeff","Valery"};
TCanvas *c1 = new TCanvas("c1","demo bin labels",10,10,900,500);
c1->SetGrid();
c1->SetTopMargin(0.15);
TH1F *h = new TH1F("h","test",3,0,3);
h->SetStats(0);
h->SetFillColor(38);
for (Int_t i=0;i<5000;i++) {
Int_t r = gRandom->Rndm()*20;
h->Fill(people[r],1);
}
h->Draw();
TPaveText *pt = new TPaveText(0.7,0.85,0.98,0.98,"brNDC");
pt->SetFillColor(18);
pt->SetTextAlign(12);
pt->AddText("Use the axis Context Menu LabelsOption");
pt->AddText(" \"a\" to sort by alphabetic order");
pt->AddText(" \">\" to sort by decreasing values");
pt->AddText(" \"<\" to sort by increasing values");
pt->Draw();
return c1;
}
Author
Rene Brun

Definition in file hlabels1.C.