Tensor parameter view as (1,) shape is converted to ScalarParameter

hysop/parameters/tensor_parameter.py

@@ -160,12 +160,21 @@ class TensorParameter(Parameter):
         _pretty_name = self.pretty_name + subscripts(ids=idx, sep='').encode('utf-8')
         name        = first_not_None(name, _name)
         pretty_name = first_not_None(pretty_name, _pretty_name)
-        return TensorParameter(name=name, pretty_name=pretty_name,
-                initial_value=initial_value, dtype=self.dtype, shape=initial_value.shape,
-                min_value=self.min_value, max_value=self.max_value, 
-                ignore_nans=self.ignore_nans, 
-                const=self.const, quiet=self.quiet, 
-                is_view=True, **kwds)
+        if initial_value.size == 1:
+            from scalar_parameter import ScalarParameter
+            return ScalarParameter(name=name, pretty_name=pretty_name,
+                                   initial_value=initial_value, dtype=self.dtype, 
+                                   min_value=self.min_value, max_value=self.max_value, 
+                                   ignore_nans=self.ignore_nans, 
+                                   const=self.const, quiet=self.quiet, 
+                                   is_view=True, **kwds)
+        else:
+            return TensorParameter(name=name, pretty_name=pretty_name,
+                                   initial_value=initial_value, dtype=self.dtype, shape=initial_value.shape,
+                                   min_value=self.min_value, max_value=self.max_value, 
+                                   ignore_nans=self.ignore_nans, 
+                                   const=self.const, quiet=self.quiet, 
+                                   is_view=True, **kwds)
 
     def iterviews(self):
         """Iterate over all parameters views to yield scalarparameters."""