How to move/resize statistics box?

ROOT
1

Hi,

how can I move and/or resize the statistics box?

Cheers,
Carsten

2

You can do this directly with the mouse.

To it it from C++, see
root.cern.ch/root/htmldoc/THistP … nter:Paint
and look at section “Statistics Display”

Rene

3

Hi Rene,

thanks for pointing me the the web page, it’s exactly what I needed.
Unfortunately my program crashes if I add the “TPaveStats” lines with a segmentation violation. I’m not sure why this is happening (using ROOT 4.00/08 ), and I’ve already tried several x start/end positions. I guess that it’s a stupid mistake on my side, but I just don’t get it. Any help is appreciated.

Cheers,
Carsten

...
TCanvas *c1 = new TCanvas("c1","c1",700,400); 
gr->Draw("AP z");

TPaveStats *st = (TPaveStats*)gr->FindObject("stats");
st->SetX1NDC(0.1); //new x start position
st->SetY1NDC(0.1); //new x end position
gr->Draw("AP z");
...
4

You can also try this:

{
   gStyle->SetStatX(0.4);
   gStyle->SetStatY(0.3);
   TH1F* h = new TH1F("h","h",100,-5,5);
   h->FillRandom("gaus");
   h->Draw();
}
5

Carsten,

The stats box is only generated when effectively painting the canvas.
You must trigger painting by calling
mycanvas.Update() just before getting the TPaveStats object.

Rene

6

Thanks, both suggestions are working fine!!

Carsten