Handled scalar values in dynamic Dataset.groupby

holoviz · Jun 4, 2016 · 266480d · 266480d
1 parent c4fd856
commit 266480d
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/holoviews/core/data/__init__.py b/holoviews/core/data/__init__.py
@@ -381,7 +381,11 @@ def groupby(self, dimensions=[], container_type=HoloMap, group_type=None,
             group_dims = [d.name for d in self.kdims if d not in dimensions]
             def load_subset(*args):
                 constraint = dict(zip(dim_names, args))
-                return group_type(self.select(**constraint).reindex(group_dims))
+                group = self.select(**constraint)
+                if np.isscalar(group):
+                    return group_type(([group],), group=self.group,
+                                      label=self.label, vdims=self.vdims)
+                return group_type(group).reindex(group_dims)
             dynamic_dims = [d(values=list(self.interface.values(self, d.name, False)))
                             for d in dimensions]
             return DynamicMap(load_subset, kdims=dynamic_dims)