Hi Hucheng,
A small example below. See also tutorials graph.C, gerrors.C, gerrors2.C.
Rene Brun
void sg() {
//creation of a TGraph with special range
TCanvas *c1 = new TCanvas("c1","simple graph",10,10,800,600);
c1->DrawFrame(0,0,10,60);
Double_t x[4] = {1,3,5,9};
Double_t y[4] = {48, 49, 52, 50};
TGraph *gr = new TGraph(4,x,y);
gr->SetMarkerStyle(21);
gr->Draw("lp");
}
>Hucheng CHEN wrote:
>Hi, Rooters:
>I have two arrays, x[] and y[]. I use TGraph to plot y vs x, because the values of >y[] are around 50.0, so the range of Y axis is from 48.0 to 52.0. I hope to change >the range Y axis to show from 0.0 to 60.0, how should I do? I tried >TAxis::SetLimits, but it doesn't work. Anybody can give me some advices? Thanks!
>Regards,
>Hucheng CHEN
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