Delete RooObject in RooWorkspace

[capalmer85]

Hi Root Experts,

I need to delete something from a RooWorkspace, but it is difficult to remove it permanently.

Following this support thread[1], I thought that I would be able to do this [2]. After doing [2], I can “.ls” and myRooObject is gone. However, when I close and open the file, myRooObject has returned.

How can I delete something in the workspace?

Cheers,
Chris

[1]

TFile::Delete a TObject from a directory

Hi experts, I can’t delete a specific cycle from a specific directory in a TFile. Here’s a dummy code (and attached is the running script) with other issues described below: { TFile f("test.root", "RECREATE"); TH1F h("h","",10,0,10); h.Fill(3); f.mkdir("testDirA"); f.cd("testDirA"); h.Write(); h.Write(); f.mkdir("testDirB"); f.cd("testDirB"); h.Write(); h.Write(); f.Close(); } { TFile f("…

[2]
root

root [0] TFile f = TFile(“myfile.root”, “UPDATE”)
root [1] myws->cd()
root [2] gDirectory->Delete("myRooObject)

[Pepe_Le_Pew]

Try: gDirectory->Delete(“myRooObject;*”);
If it helps, see http://root.cern.ch/root/html/TDirectoryFile.html#TDirectoryFile:Delete and/or http://root.cern.ch/root/html/TFile.html#TFile:Delete