add check if oob data is present

src/logger.cpp

@@ -339,7 +339,7 @@ std::string LoggerInbagRisk::printLoggerStatus () const
  */
 
 LoggerOobRisk::LoggerOobRisk (const std::string& logger_id0, const bool& is_a_stopper0, std::shared_ptr<loss::Loss> sh_ptr_loss,
-  const double& eps_for_break, const unsigned int& patience, std::map<std::string, std::shared_ptr<data::Data>> oob_data, 
+  const double& eps_for_break, const unsigned int& patience, std::map<std::string, std::shared_ptr<data::Data>> oob_data,
   std::shared_ptr<response::Response> oob_response)
   : sh_ptr_loss ( sh_ptr_loss ),
     eps_for_break ( eps_for_break ),
@@ -396,15 +396,21 @@ void LoggerOobRisk::logStep (const unsigned int& current_iteration, std::shared_
     sh_ptr_oob_response->constantInitialization(sh_ptr_response->getInitialization());
     sh_ptr_oob_response->initializePrediction();
   }
+
   std::string blearner_id = sh_ptr_blearner->getDataIdentifier();
 
   // Get data of corresponding selected baselearner. E.g. iteration 100 linear
   // baselearner of feature x_7, then get the data of feature x_7:
-  std::shared_ptr<data::Data> oob_blearner_data = oob_data.find(blearner_id)->second;
 
-  // Predict this data using the selected baselearner:
-  arma::mat temp_oob_prediction = sh_ptr_blearner->predict(oob_blearner_data);
-  sh_ptr_oob_response->updatePrediction(learning_rate, step_size, temp_oob_prediction);
+  // Check, whether the data object is present or not:
+  std::map<std::string, std::shared_ptr<data::Data>>::iterator it_oob_data = oob_data.find(blearner_id);
+  if (it_oob_data != oob_data.end()) {
+    std::shared_ptr<data::Data> oob_blearner_data = it_oob_data->second;
+
+    // Predict this data using the selected baselearner:
+    arma::mat temp_oob_prediction = sh_ptr_blearner->predict(oob_blearner_data);
+    sh_ptr_oob_response->updatePrediction(learning_rate, step_size, temp_oob_prediction);
+  }
 
 
   /* *****************************************************************************************************************************