Re: Branches w/ different number of events

Hi Hovhannes,

Your script has a typo, it fills the Ana2 branch both times, if you change it to Ana1 in the first loop you should get both branches filled (yet uncorrelated).

Cheers

        Eduard

On Wed, 1 Sep 2010, Hovhannes Khandanyan wrote:

> Dear ROOTers,
>
> I want to create a root tree with 2 branches corresponding to 2 different
> analysis i.e. having different number of entries per branch. Is this
> possible? The test macro below creates the required TTree structure, without
> filling the leaves though. What am I doing wrong?
>
> Thanks for any help,
> Hovhannes
>
> int test(){
> TFile* file = new TFile("myfile.root","recreate");
> TTree* tree = new TTree("T", "T");
>
> double var1, var2;
>
> tree->Branch("Ana1", &var1, "var1/F");
> tree->Branch("Ana2", &var2, "var2/F");
>
> for (int i = 10; i < 25; i++){
> var1 = i*2.45;
> TBranch* br1 = tree->GetBranch("Ana2");
> br1->Fill();
> }
>
>
>
> for (int i = 0; i < 5; i++){
> var2 = i*1.17;
> TBranch* br2 = tree->GetBranch("Ana2");
> br2->Fill();
> }
> tree->Write();
> file->Close();
>
> return 0;
> }
>
>
Received on Wed Sep 01 2010 - 22:41:52 CEST