added create functions

mlmc/src/estimators/Estimator.cpp

+#include "StochasticCollocation.hpp"
+#include "MultilevelEstimator.hpp"
+#include "MonteCarlo.hpp"
+
+#include "Estimator.hpp"
+
+
+Estimator *CreateEstimator(const std::string &estimatorName) {
+  if (estimatorName == "StochasticCollocation")
+    return new StochasticCollocation();
+  if (estimatorName == "MultilevelMonteCarlo")
+    return new MultilevelEstimator();
+  if (estimatorName == "MonteCarlo")
+    return new MonteCarlo();
+  else Exit("Estimator is not implemented")
+}
+
+
+std::unique_ptr<Estimator> CreateEstimatorUniquePtr(const std::string &estimatorName) {
+  if (estimatorName == "StochasticCollocation")
+    return std::make_unique<StochasticCollocation>();
+  if (estimatorName == "MultilevelMonteCarlo")
+    return std::make_unique<MultilevelEstimator>();
+  if (estimatorName == "MonteCarlo")
+    return std::make_unique<MonteCarlo>();
+  else Exit("Estimator is not implemented")
+}

mlmc/src/estimators/Estimator.hpp

@@ -27,7 +27,6 @@ public:
 
   double Epsilon() const { return epsilon; }
 
-
   virtual void Method() {};
 
   virtual std::string Name() const { return "Estimator"; };
@@ -39,4 +38,8 @@ public:
   virtual void ExponentResults() const {};
 };
 
+Estimator *CreateEstimator(const std::string &estimatorName);
+
+std::unique_ptr<Estimator> CreateEstimatorUniquePtr(const std::string &estimatorName);
+
 #endif //ESTIMATOR_HPP