Hi Rene,
yes I forgot to copy and paste the line
leaf = (TLeaf*)next().
when I do
tree->GetListOfLeaves()->ls();
I get
root [8] selectedtree->GetListOfLeaves()->ls()
OBJ: TLeafF this is its description this is its description : 0 at:
0x8b9eb78
...
instead of the (expected?)
OBJ: TLeafF variablename this is its description : 0 at:
0x8b9eb78
...
regards
Markus
____________________________________________
/ Markus Cristinziani, Research Associate /
/ Stanford Linear Accelerator Center /
/ ++1(650)926-3886 markus@slac.stanford.edu /
--------------------------------------------
On Thu, 19 Jun 2003, Rene Brun wrote:
> Hi Markus,
>
> In your example, you have omitted the most critical part: how you get
> the leaf pointer?
> The following should work:
>
> TLeaf *leaf;
> TIter next (tree->GetListOfLeaves());
> while ((leaf = (TLeaf*)next())) {
> tree->Draw(leaf->GetName());
> }
>
> I would need your code to figure out the problem.
> What is the ouput of:
> tree->GetListOfLeaves()->ls(); ?
>
> Rene Brun
>
> Markus Cristinziani wrote:
> >
> > Hello,
> >
> > I have a simple tree and I would like to histogram all variables in an
> > automatic way. I do the following in 3.03/09
> >
> > TFile f("myfile.root");
> > tree->Print;
> >
> > ...
> > ******************************************************************************
> > *Br 0 :varname : this is its description/F
> > *
> > *Entries : 8877 : Total Size= 48065 bytes File Size = 28030 *
> > *Baskets : 1 : Basket Size= 32000 bytes Compression= 1.14
> > *
> > *............................................................................*
> > ...
> >
> > TLeaf *leaf;
> > TIter next (tree->GetListOfLeaves());
> > leaf->GetTitle(); -> "this is its description"
> > leaf->GetName(); -> "this is its description"
> >
> > i.e. I don't get its name, so I can't do tree->Draw(leaf->GetName());
> >
> > *ERROR 26 :
> > Unknown name : "thisisitsdescription"
> >
> > Any suggestions ?
> >
> > Thanks,
> > Markus
> >
> > ____________________________________________
> > / Markus Cristinziani, Research Associate /
> > / Stanford Linear Accelerator Center /
> > / ++1(650)926-3886 markus@slac.stanford.edu /
> > --------------------------------------------
>
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