diff --git a/Core/Fitting/SimDataPair.cpp b/Core/Fitting/SimDataPair.cpp
index 61ce1760249ac60c687c575ec5d76c67e6539156..865fbc5c01d9c747f7832d5e8c30027a0ff4e8a8 100644
--- a/Core/Fitting/SimDataPair.cpp
+++ b/Core/Fitting/SimDataPair.cpp
@@ -36,22 +36,22 @@ std::unique_ptr<OutputData<double>> initUserWeights(const OutputData<double>& sh
 } // namespace
 
 
-SimDataPair::SimDataPair(simulation_builder_t builder, const OutputData<double>& data,
-                         std::unique_ptr<OutputData<double>>&& uncertainties, double user_weight)
+SimDataPair::SimDataPair(simulation_builder_t builder, const OutputData<double>& raw_data,
+                         std::unique_ptr<OutputData<double>>&& raw_stdv, double user_weight)
     : m_simulation_builder(builder)
-    , m_raw_data(data.clone())
-    , m_raw_uncertainties(std::move(uncertainties))
+    , m_raw_data(raw_data.clone())
+    , m_raw_uncertainties(std::move(raw_stdv))
 {
     m_raw_user_weights = initUserWeights(*m_raw_data, user_weight);
     validate();
 }
 
-SimDataPair::SimDataPair(simulation_builder_t builder, const OutputData<double>& data,
-                         std::unique_ptr<OutputData<double>>&& uncertainties,
+SimDataPair::SimDataPair(simulation_builder_t builder, const OutputData<double>& raw_data,
+                         std::unique_ptr<OutputData<double>>&& raw_stdv,
                          std::unique_ptr<OutputData<double>>&& user_weights)
     : m_simulation_builder(builder)
-    , m_raw_data(data.clone())
-    , m_raw_uncertainties(std::move(uncertainties))
+    , m_raw_data(raw_data.clone())
+    , m_raw_uncertainties(std::move(raw_stdv))
     , m_raw_user_weights(std::move(user_weights))
 {
     if (!m_raw_user_weights)
diff --git a/Core/Fitting/SimDataPair.h b/Core/Fitting/SimDataPair.h
index 69f03dc984556ffbb70b9de57b38038094ab20be..59f76fd3c8e8b3cc751b71ca7a6f74752dca9745 100644
--- a/Core/Fitting/SimDataPair.h
+++ b/Core/Fitting/SimDataPair.h
@@ -29,11 +29,11 @@ template <class T> class OutputData;
 
 class SimDataPair {
 public:
-    SimDataPair(simulation_builder_t builder, const OutputData<double>& data,
-                std::unique_ptr<OutputData<double>>&& uncertainties, double user_weight = 1.0);
+    SimDataPair(simulation_builder_t builder, const OutputData<double>& raw_data,
+                std::unique_ptr<OutputData<double>>&& raw_stdv, double user_weight = 1.0);
 
-    SimDataPair(simulation_builder_t builder, const OutputData<double>& data,
-                std::unique_ptr<OutputData<double>>&& uncertainties,
+    SimDataPair(simulation_builder_t builder, const OutputData<double>& raw_data,
+                std::unique_ptr<OutputData<double>>&& raw_stdv,
                 std::unique_ptr<OutputData<double>>&& user_weights);
 
     SimDataPair(SimDataPair&& other);
diff --git a/auto/Wrap/doxygenCore.i b/auto/Wrap/doxygenCore.i
index c0a18f6d886b8952f3ab1cbf58ec9159efde61f4..bb50ed75718a80a7c1e65b21561629841c6c0c32 100644
--- a/auto/Wrap/doxygenCore.i
+++ b/auto/Wrap/doxygenCore.i
@@ -1876,10 +1876,10 @@ Holds pair of simulation/experimental data to fit.
 C++ includes: SimDataPair.h
 ";
 
-%feature("docstring")  SimDataPair::SimDataPair "SimDataPair::SimDataPair(simulation_builder_t builder, const OutputData< double > &data, std::unique_ptr< OutputData< double >> &&uncertainties, double user_weight=1.0)
+%feature("docstring")  SimDataPair::SimDataPair "SimDataPair::SimDataPair(simulation_builder_t builder, const OutputData< double > &raw_data, std::unique_ptr< OutputData< double >> &&raw_stdv, double user_weight=1.0)
 ";
 
-%feature("docstring")  SimDataPair::SimDataPair "SimDataPair::SimDataPair(simulation_builder_t builder, const OutputData< double > &data, std::unique_ptr< OutputData< double >> &&uncertainties, std::unique_ptr< OutputData< double >> &&user_weights)
+%feature("docstring")  SimDataPair::SimDataPair "SimDataPair::SimDataPair(simulation_builder_t builder, const OutputData< double > &raw_data, std::unique_ptr< OutputData< double >> &&raw_stdv, std::unique_ptr< OutputData< double >> &&user_weights)
 ";
 
 %feature("docstring")  SimDataPair::SimDataPair "SimDataPair::SimDataPair(SimDataPair &&other)