Hi Claire,
An example:
void transe() {
gStyle->SetErrorX(0);
TH1F *h1 = new TH1F("h1","test1",30,-2,2);
TF1 f1("f1","gaus",-2,2);
f1->SetParameters(1,-0.5,1);
h1->FillRandom("f1",10000);
TH1F *h2 = new TH1F("h2","test2",30,-2,2);
f1->SetParameters(1,0.5,0.3);
h2->FillRandom("f1",3200);
h1->SetLineColor(kRed);
h1->SetMarkerStyle(20);
h1->SetMarkerColor(kRed);
h1->Draw("e1");
TExec *setex2 = new TExec("setex2","gStyle->SetErrorX(0.5)");
setex2->Draw();
h2->SetMarkerStyle(21);
h2->SetMarkerSize(0.7);
h2->Draw("e1 same");
TExec *setex1 = new TExec("setex1","gStyle->SetErrorX(0)");
setex1->Draw();
}
Rene Brun
On Sat, 14 Dec 2002, Claire Gwenlan wrote:
> Hi,
>
> Is it possible to make different histograms on the same canvas have
> different lengths of error bar? For example, in a plot with two
> histograms, I would like to have no
> horizontal error bar for 1 histogram, but the defualt
> gStyle->SetErrorX(0.5); for the other, on the same plot.
>
>
> Thank you very much,
>
> Claire
>
>
>
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