Cannot rewrite to an existing histogram

[gdule]

Hello,

I have two histograms named h0 and h1, which were created like this:

TreeS->Draw("var1>>h0");
TreeS->Draw("var2>>h1");

I also wrote this method to plot them:

void PlotHists(TH1F* h1, TH1F* h2, TString title, TString name1 = "Uncut", TString name2 = "Cut")
{
	h1->SetName(name1); h2->SetName(name2);
	h1->SetNormFactor(1); h2->SetNormFactor(1); 
    h1->SetLineColor(kRed); h2->SetLineColor(kBlue); 
    h1->SetTitle(title); h1->Draw(); gPad->Update();
	TPaveStats* s = (TPaveStats*)h1->GetListOfFunctions()->FindObject("stats"); 
    s->SetY1NDC(0.65); s->SetY2NDC(0.40); s->SetX1NDC(0.98); s->SetX2NDC(0.65); 
	s->SetLineColor(kRed); s->SetTextSize(.05); 
	h2->Draw("sames"); gPad->Update(); 
    TPaveStats* s = (TPaveStats*)h2->GetListOfFunctions()->FindObject("stats"); 
    s->SetY1NDC(0.92); s->SetY2NDC(0.67); s->SetX1NDC(0.98); s->SetX2NDC(0.65);
	s->SetLineColor(kBlue); s->SetTextSize(.05);
	h2->Draw("sames");
	}

This method works great.
However, when I now try to rewrite these histograms

TreeS->Draw("var3>>h1");
TreeS->Draw("var4>>h2");

and plot them using the same module, I notice that the plots does not change.
Help!

Thank you!

[behrenhoff]

Add parentheses:

TreeS->Draw("var3>>h1()");

Otherwise you keep the old binning.

Edit: also, I find it strange that you rename the histograms in a plot function. Why would you do that? So I don’t know if my advice of using parens is what you really want or if renaming is your problem.

[gdule]

Thank you! it worked!
I’m changing the name so that statbox’s name would also change.