I am trying to use in a loop the automatic binning feature of
ntuple->Draw("x>>h1","selection")
If I try to reuse h1 without deleting it the contents are replaced
but the bins and limits are not recalculated which is no use. If
I delete h1 before replacing it, new limits are computed but I get a
segmentation violation.
root [0] TFile f("straight3rd.root");
root [1] stks->Draw("z>>h1","z>28 && z<32");
Warning in <MakeDefCanvas>: creating a default canvas with name c1
root [2] h1->Print();
TH1.Print Name= h1, Total sum= 18409
root [3] h1->Delete();
root [4] stks->Draw("z>>h1","z>55 && z<60");
root [5] h1->Print();
*** Break *** segmentation violation
Help?
Bill Love