TMVA error with BookMethod

Newbie
#1

When I try to run a .C file, i receive an error:

**error:** **no matching member function for call to 'BookMethod'**
factory->BookMethod( TMVA::Types::kCuts, "Cuts",

The part of the code is

if (Use["Cuts"])
      factory->BookMethod( TMVA::Types::kCuts, "Cuts",
                           "!H:!V:FitMethod=MC:EffSel:SampleSize=200000:VarProp=FSmart" );

I had to change factory->AddVariable to dataloader->AddVariable in order to add variables. What do I have to change here?

I am currently running root 6.14 on MacOS Mojave (10.14). The file I am trying to run was built for an older version of root.

#2

For anyone else, this problem is solved. I reinstalled an older version of root (6.08) and it worked without a hitch.

#3

@moneta @kialbert - what’s the replacement for BookMethod?

#4

Hi,

Starting with ROOT version 6.10 the syntax is

TMVA::DataLoader * dataloader = new TMVA::DataLoader("dataset");

// ...snip...

if (Use["Cuts"])
      factory->BookMethod( dataloader, TMVA::Types::kCuts, "Cuts",
                           "!H:!V:FitMethod=MC:EffSel:SampleSize=200000:VarProp=FSmart" );

You can check $ROOTSYS/tutorials/tmva/TMVAClassification.C for the syntax applicable to you installed version.

Cheers,
Kim

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