TMVA Booking Error

Hi all,

When I try to run my code in TMVA, it says “— Factory : No analysis type for 1 classes and 0 regression targets.” I checked the Factory.cxx source code and the error points me to line 706~718. I’ve checked my code (factory.BookMethod(TMVA::Types::kBDT, “BDTG”, opts):wink: and I believe I did the required input. Please help. Thanks!



Could you append a runnable example?

It seems you have provided only a Signal class or a Background class, not both. Please check tutorials/tmva/TMVAClassification.C, lines 232 and 233 in particular.

dataloader->AddSignalTree    ( signalTree,     signalWeight );
dataloader->AddBackgroundTree( background, backgroundWeight );

You need to provide both to give the classifier something to train on. If this does not solve your problem, don’t hesitate to let me know.


This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.