Error about TMVA

TMVA
1

The TMVA library is used for artificial neural network，the train file is:

ROOT Version: 6.28/04
Platform: Ubuntu 20.04
Compiler: gcc 9.4.0

2

the train file is:

train.cpp (3.5 KB)

and the file include the network parameters was produced, and used by the file for predicting.

and the predict file is:

predict.cpp (1.5 KB)

when running the predicting, the error occured:

     : Booking "DNN" of type "DNN" from dataset/weights/NeutronSpectrum_DNN.weights.xml.

             : MethodDNN is deprecated and it will be removed in future ROOT version. Please use MethodDL ( TMVA::kDL)

: Reading weight file: dataset/weights/NeutronSpectrum_DNN.weights.xml

DataSetInfo : [Default] : Added class "Regression" : Booked classifier "DNN" of type: "DNN" : Rebuilding Dataset Default Error in : matrices not compatible Prediction: spec0 = 15.692

what cause the error “matrices not compatible“?

3

@moneta, could you have a look here?

4

Hi,

kDNN is a deprecated method and should not ne used. You should use TMVA::Types::kDL and see as example the tutorial TMVA_Higgs_Classification.C .

If you have issues converting the code to use kDL, please let me know

Lorenzo

5

@moneta @StephanH , thanks, you are right, the application can run well.

6

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