Commit before merge qiskit-community#1268

qiskit_experiments/framework/composite/composite_analysis.py

@@ -118,11 +118,14 @@ def copy(self):
     def _run_analysis(self, experiment_data: ExperimentData):
         child_data = experiment_data.child_data()
 
-        if len(self._analyses) != len(child_data):
-            # Child data is automatically created when composite result data is added.
-            # Validate that child data size matches with number of analysis entries.
+        if len(child_data) == 0:  
+            # Child data is automatically created when composite result data is added.  
+            # Validate that child data size matches with number of analysis entries.  
             experiment_data.create_child_data()
 
+        if len(self._analyses) != len(child_data):
+            raise("analysis length and experiment lenggth are not same")
+
         for sub_analysis, sub_data in zip(self._analyses, child_data):
             # Since copy for replace result is handled at the parent level
             # we always run with replace result on component analysis

qiskit_experiments/framework/experiment_data.py

@@ -739,15 +739,11 @@ def add_data(
             else:
                 raise TypeError(f"Invalid data type {type(datum)}.")
         self.create_child_data()
-        self.init_children_data()
+        self._init_children_data()
 
     @property
     def __retrive_self_attrs_as_dict(self) -> dict:
 
-        """
-        retrive data about self to bootstrap
-        """
-
         return {
             "backend": self.backend,
             "tags": self.tags,
@@ -763,12 +759,12 @@ def __retrive_self_attrs_as_dict(self) -> dict:
             "experiment_type": self.experiment_type,
         }
 
-    def create_child_data(self):  # pylint: disable=inconsistent-return-statements
+    def create_child_data(self) -> "ExperimenData":  # pylint: disable=inconsistent-return-statements
 
-        """Bootstrap Experiment data containers
+        """Bootstrap child experiment data containers from result metadata.  
 
-        Returns:
-            self : return itself for method calling
+        Returns:  
+            Current instance populated with the child experiment data.  
         """
 
         if (component_metadata := self.metadata.get("component_metadata", None)) is None:
@@ -791,7 +787,7 @@ def create_child_data(self):  # pylint: disable=inconsistent-return-statements
 
         return self
 
-    def init_children_data(self):  # pylint: disable=inconsistent-return-statements
+    def _init_children_data(self):  # pylint: disable=inconsistent-return-statements
 
         """Bootstrap Experiment data containers's data