Hi,
I can successfully compile and run the TMVAClassification.C
file given in the directory /root/tutorials/tmva
using the command $ make TMVAClassification; ./TMVAClassification
. But despite having this line in the code:
//Launch the GUI for the root macros
if (!gROOT->IsBatch()) TMVA::TMVAGui( outfileName );
no GUI appears after the completion. However, if I run: $ root TMVAClassification.C
, The GUI opens at programme completion. I need to be able to do that because I will eventually use other libraries in the same code. Someone help please?
Hi,
A TApplication is needed when creating a standalone application. Try to change TMVAClassification.C
this way:
int main( int argc, char** argv )
{
TApplication theApp("TMVAClassification", &argc, argv);
// Select methods (don't look at this code - not of interest)
TString methodList;
for (int i=1; i<argc; i++) {
TString regMethod(argv[i]);
if(regMethod=="-b" || regMethod=="--batch") continue;
if (!methodList.IsNull()) methodList += TString(",");
methodList += regMethod;
}
int ret = TMVAClassification(methodList);
theApp.Run();
return ret;
}
Cheers, Bertrand.
1 Like
Thanks for clarifying that. And I needed to add
#include "TApplication.h"
at the beginning of the code.
Indeed… And you’re welcome