TMVA::DataLoader draw variables and their correlations

TMVA
1

I’m using ROOT version 6.14.04. I am wondering how to plot variables and their correlations through TMVA::DataLoader which used to have the functions TMVA::DataLoader::DrawInputVariable() and TMVA::DataLoader::DrawCorrelationMatrix(), you can check here: http://nbviewer.jupyter.org/github/iml-wg/tmvatutorials/blob/master/TMVAinJupyter_FullTutorial.ipynb if you go to the Visualizing input variables part, but not for this new version.

Best.

2

Hi,

The functions you refer to are only available to jsmva, the web-interface of TMVA. (Will update this post with a link when I have a good reference for more information on it).

If you want to use a similar functionality in the c++/python version of TMVA you will have to use the TMVAGui. You can start it given your output file from classification/regression like so: root -l -e 'TMVA::TMVAGui("./path/to/file")'. More information on TMVAGui can be found in the Users’ Guide.

Cheers,
Kim

3

Good to know this info. It looks like many MVAs(RMVA, TMVA, pyMVA) are not unified.