started to implement the function to get model-data mismatch for each obs

da/baseclasses/obs.py

@@ -57,6 +57,12 @@ class Observation(object):
         """ Add the simulation data to the Observation object. 
         """
 
+    def AddModelDataMismatch(self, DaCycle):
+        """ 
+            Get the model-data mismatch values for this cycle.
+
+        """
+
     def WriteSampleInfo(self, DaCycle):
         """ 
             Write the information needed by the observation operator to a file. Return the filename that was written for later use

da/ct/obs.py

@@ -154,6 +154,11 @@ class CtObservations(Observation):
         return obsinputfile
 
 
+    def AddModelDataMismatch(self, DaCycle):
+        """ 
+            Get the model-data mismatch values for this cycle.
+
+        """
 
 ################### End Class CtObservations ###################