please i have tree and branch
this branch has a leaf contained a 7 variables
please i don’t know the code for making this leaf with its variable
please help me [-o< [-o< [-o<

root.cern.ch/root/html534/tutori … index.html

please this is a programme how can i make xx leaf hold xx1 and xx2
and how can i make xx1 hold xxx1 and xxx2 please i tried before with these trees examples but i couldn’t find solution for this problem please help me

TFile f(“ht.root”,“recreate”);

TTree* mytree = new TTree(“mytree”,“Test Tree”);

TH1D* h = new TH1D(“h”,“h”,10,0,1);

Double_t values[3] = {0,0,0};

TBranch *b2 = mytree->Branch(“b2”,values, “xx/D:ff:hh”);



Yes, that’s simple examples you can use as model.

yes i tried with this example to find solution i used the code of tree1 then tree2 then tried with 3 and finally with 4 but without result :frowning: :frowning: :frowning:


See the result of calling MakeClass on your TTree for a good example :slight_smile: