Hello root experts,
I have a problem if i use MVAClassificationApplication.C code to fit my histograms and find the suitable cut for both of sinal and background.But i find error during run this code
==> Start TMVAClassification
: fatal error: unable to open input weight file: /home/ahmedsayed/bb-quark_Signals/TMVAClassification_BDT.weights.xml
***> abort program execution
terminate called after throwing an instance of ‘std::runtime_error’
what(): FATAL error )
I dont know to fix this error and i need help.
Note: All hP90.root ,hP95,hP96.root are signals ,otherwise are background
Thanks for your question. I’m not able to understand your question clearly (maybe it’s a formatting issue?). I see that you have issues opening TMVAClassification_BDT.weights.xml, please check if the file exists.
Otherwise, it would be nice if you extract a minimal standalone reproducer. So that we can at least pinpoint where the problem is.
Hi @devajith
Actually, i find a problem in my directory then fix it .But still i find a problem during run the code. I run the code as root -l ‘MVAClassificationApplication.C ( " BTD" )’ . And the appeared error is shown as
*// /////////////////////
ahmedsayed@ahmedsayed TMVAClassification_BDT.weights.xml]$ root ‘TMVAClassificationApplication.C(“BDT”)’
Warning in TApplication::GetOptions: macro TMVAClassificationApplication.C not found
root: unrecognized option ‘TMVAClassificationApplication.C(“BDT”)’
Try ‘root --help’ for more information
*////////////////
please check me this error that disappear the used method (BDT) or (Boosted Decision tree)
*///////////////////////////////////////////
To clarify my problem accurately. I think in this section of the code
// Book method(s)
for (std::mapstd::string,int::iterator it = Use.begin(); it != Use.end(); it++) {
if (it->second) {
TString methodName = TString(it->first) + TString(" method");
TString weightfile = dir + prefix + TString(“_”) + TString(it->first) + TString(“.weights.xml”);
reader->BookMVA( methodName, weightfile );
}
make sure that you’re cd’d into the same folder as the macro.
When I had a look at your TMVAClassificationApplication.C file. I find that //void TMVAClassificationApplication is commented out. It doesn’t run the main function. You need to have the function name the same as the file name.
yes, thanks for this note , I fix it but this error is appeard
//***************************
rocessing TMVAClassificationApplication.C(“BDT”)…
==> Start TMVAClassificationApplication
Error in TXMLEngine::ParseFile: Unexpected end of xml file
: Trying to read non-existing attribute ‘Method’ from xml node ’
***> abort program execution
terminate called after throwing an instance of ‘std::runtime_error’
what(): FATAL error
*//////////////////////////////////////////////////////////////////
To clarify my problem accurately. I think in this section of the code
// Book method(s)
for (std::mapstd::string,int::iterator it = Use.begin(); it != Use.end(); it++) {
if (it->second) {
TString methodName = TString(it->first) + TString(" method");
TString weightfile = dir + prefix + TString(“_”) + TString(it->first) + TString(“.weights.xml”);
reader->BookMVA( methodName, weightfile );
}