From a92b4f58ed95a148aa2a9750018c81761f643794 Mon Sep 17 00:00:00 2001
From: kaklise <kaklise@sandia.gov>
Date: Tue, 30 Apr 2024 09:53:35 -0700
Subject: [PATCH] changed yhat to y_hat

---
 .../parmest/examples/reactor_design/datarec_example.py      | 4 ++--
 .../examples/reactor_design/multisensor_data_example.py     | 6 +++---
 .../examples/reactor_design/timeseries_data_example.py      | 6 +++---
 pyomo/contrib/parmest/parmest.py                            | 2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/pyomo/contrib/parmest/examples/reactor_design/datarec_example.py b/pyomo/contrib/parmest/examples/reactor_design/datarec_example.py
index 02aa13fceab..be08e727be9 100644
--- a/pyomo/contrib/parmest/examples/reactor_design/datarec_example.py
+++ b/pyomo/contrib/parmest/examples/reactor_design/datarec_example.py
@@ -132,8 +132,8 @@ def main():
     # Define sum of squared error objective function for data rec
     def SSE_with_std(model):
         expr = sum(
-            ((y - yhat) / model.experiment_outputs_std[y]) ** 2
-            for y, yhat in model.experiment_outputs.items()
+            ((y - y_hat) / model.experiment_outputs_std[y]) ** 2
+            for y, y_hat in model.experiment_outputs.items()
         )
         return expr
 
diff --git a/pyomo/contrib/parmest/examples/reactor_design/multisensor_data_example.py b/pyomo/contrib/parmest/examples/reactor_design/multisensor_data_example.py
index 48a7bca52ca..208981a784a 100644
--- a/pyomo/contrib/parmest/examples/reactor_design/multisensor_data_example.py
+++ b/pyomo/contrib/parmest/examples/reactor_design/multisensor_data_example.py
@@ -74,10 +74,10 @@ def main():
     # Define sum of squared error
     def SSE_multisensor(model):
         expr = 0
-        for y, yhat in model.experiment_outputs.items():
-            num_outputs = len(yhat)
+        for y, y_hat in model.experiment_outputs.items():
+            num_outputs = len(y_hat)
             for i in range(num_outputs):
-                expr += ((y - yhat[i]) ** 2) * (1 / num_outputs)
+                expr += ((y - y_hat[i]) ** 2) * (1 / num_outputs)
         return expr
 
     # View one model
diff --git a/pyomo/contrib/parmest/examples/reactor_design/timeseries_data_example.py b/pyomo/contrib/parmest/examples/reactor_design/timeseries_data_example.py
index 04a64850f40..4eb191afd6d 100644
--- a/pyomo/contrib/parmest/examples/reactor_design/timeseries_data_example.py
+++ b/pyomo/contrib/parmest/examples/reactor_design/timeseries_data_example.py
@@ -59,10 +59,10 @@ def main():
     def SSE_timeseries(model):
 
         expr = 0
-        for y, yhat in model.experiment_outputs.items():
-            num_time_points = len(yhat)
+        for y, y_hat in model.experiment_outputs.items():
+            num_time_points = len(y_hat)
             for i in range(num_time_points):
-                expr += ((y - yhat[i]) ** 2) * (1 / num_time_points)
+                expr += ((y - y_hat[i]) ** 2) * (1 / num_time_points)
 
         return expr
 
diff --git a/pyomo/contrib/parmest/parmest.py b/pyomo/contrib/parmest/parmest.py
index ac2c7fdb0aa..6bc69c78bcd 100644
--- a/pyomo/contrib/parmest/parmest.py
+++ b/pyomo/contrib/parmest/parmest.py
@@ -242,7 +242,7 @@ def SSE(model):
     """
     Sum of squared error between `experiment_output` model and data values
     """
-    expr = sum((y - yhat) ** 2 for y, yhat in model.experiment_outputs.items())
+    expr = sum((y - y_hat) ** 2 for y, y_hat in model.experiment_outputs.items())
     return expr