Hi Lars,
When doing tree.Draw("y:x") the stats box is not created. The reason is that
tree.Draw does not fill a 2-d histogram by default. It draws the original points
y[i] vs x[i] with the original precision in the pad directly.
You can force tree.Draw to fill a 2-d histogram, eg
TH2F h2("h2","my hist",40,-4,4,40,0,100);
tree.Draw("y:x>>h2");
The histogram h2 will be filled and you will get the corresponding stats box.
Rene Brun
Lars Ewell wrote:
>
> To Whom it May Concern,
>
> After chaining together a number of histograms, I
> have been looking over some plots. The 'Statistics Box'
> in the upper right hand corner of the plot contains
> useful information (e.g. RMS, mean, etc.).
>
> Unfortunately, when I then plot two dimensional
> scatter plots from the same chain, the box has vanished.
> I played around some with the 'SetOptStat()' member
> function but have not been able to get it displayed
> on 2D plots.
>
> Any suggestions?
>
> Thanks in advance.
>
> regards,
>
> Lars Ewell
> --
> ______________________________________
> Lars Ewell
> Brookhaven National Laboratory
> PHENIX Group
> Physics Dept. 510C
> Upton, NY 11973
>
> ewell@bnl.gov
> Phone (631)344-7070
> FAX (631)344-3253
> www http://ewell.rhic.bnl.gov/~ewell
> _____________________________________
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