Bug/nandata

README.md

@@ -19,9 +19,10 @@ data = nt2.Data("path/to/data")
 The data is stored in specialized containers which can be accessed via corresponding attributes:
 
 ```python
-data.fields     # < xr.Dataset
-data.particles  # < special object which returns a pd.DataFrame when .load() is called
-data.spectra    # < xr.Dataset
+data.fields      # < xr.Dataset
+data.particles   # < special object which returns a pd.DataFrame when .load() is called
+data.spectra     # < xr.Dataset
+data.diagnostics # < pd.DataFrame
 ```
 
 > If using Jupyter notebook, you can quickly preview the loaded metadata by simply running a cell with just `data` in it (or in regular python, by doing `print(data)`).

nt2/__init__.py

@@ -1,4 +1,4 @@
-__version__ = "1.5.0"
+__version__ = "1.5.1"
 
 import nt2.containers.data as nt2_data
 

nt2/readers/adios2.py

@@ -101,7 +101,10 @@ def ReadArrayAtTimestep(
             if quantity in f.available_variables():
                 var = f.inquire_variable(quantity)
                 if var is not None:
-                    return np.array(f.read(var))
+                    if var.shape() == [0]:
+                        return np.array([])
+                    else:
+                        return np.array(f.read(var))
                 else:
                     raise ValueError(f"{quantity} not found in the {filename}")
             else: