Scott,
If you move to the recently released version 2.00/12, this problem
is solved. See release notes
Rene Brun
Scott Sampson wrote:
>
> Hi,
>
> I want to do something which seems relatively simple, but I can't get it
> to work:
>
> I have a TGraphErrors object in one file, and a TTree object in another
> file. I want to superimpose a scatter plot from the Tree onto the Graph. I
> want to do this for a specified axis range and use log scales in x and y.
> So I use the macro below. The problem is that I get the points from the
> graph, but no scatter plot. It seems that ROOT doesn't like my attempt to
> superimpose a scatter plot on a pre-existing frame. (i.e. I first use a
> gPad->DrawFrame(. . .) then an h14->Draw("y:x", "SAME") )
> Is there a fix for this? Thanks,
>
> Scott Sampson
> Columbia University
>
> Int_t plt() {
>
> c1->Clear();
>
> TFile *g = new TFile("lepto/nc_cc_xsec2.root");
> TTree *h14 = (TTree*)g->Get("h14") ;
>
> TFile *f = new TFile("root/graphs.root");
> TGraphErrors *tgr = (TGraphErrors *)f->Get("grx");
>
> MakePad(1,2,1,1);
> gPad->SetLogx();
> gPad->SetLogy();
> gPad->DrawFrame(0.01,0.01,1.0,1000);
>
> tgr->Draw("P");
> h14->Draw("sig/(xh-xl):xc","flg==0","SAME");
>
> gPad->Update();
>
> }
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