orion.analysis.analyze crashes when no event is found about orion

[JeanMNoel]

Error log:

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
C:\Users\jenoel\AppData\Local\Continuum\anaconda3\envs\Orion\lib\site-packages\pandas\core\internals\managers.py in create_block_manager_from_blocks(blocks, axes)
   1650                 blocks = [make_block(values=blocks[0],
-> 1651                                      placement=slice(0, len(axes[0])))]
   1652 

C:\Users\jenoel\AppData\Local\Continuum\anaconda3\envs\Orion\lib\site-packages\pandas\core\internals\blocks.py in make_block(values, placement, klass, ndim, dtype, fastpath)
   3094 
-> 3095     return klass(values, ndim=ndim, placement=placement)
   3096 

C:\Users\jenoel\AppData\Local\Continuum\anaconda3\envs\Orion\lib\site-packages\pandas\core\internals\blocks.py in __init__(self, values, placement, ndim)
     86                 'Wrong number of items passed {val}, placement implies '
---> 87                 '{mgr}'.format(val=len(self.values), mgr=len(self.mgr_locs)))
     88 

ValueError: Wrong number of items passed 1, placement implies 3

During handling of the above exception, another exception occurred:

ValueError                                Traceback (most recent call last)
 in 
      3 pipeline_path = '../orion/pipelines/lstm_dynamic_threshold.json'
      4 
----> 5 anomalies = analyze(pipeline_path, train, test)
      6 anomalies

C:\Users\jenoel\AppData\Local\Continuum\anaconda3\envs\Orion\lib\site-packages\orion\analysis.py in analyze(pipeline, train, test)
     36     LOGGER.debug("%s events found", len(events))
     37 
---> 38     events = pd.DataFrame(events, columns=['start', 'end', 'score'])
     39     events['start'] = events['start'].astype(int)
     40     events['end'] = events['end'].astype(int)

C:\Users\jenoel\AppData\Local\Continuum\anaconda3\envs\Orion\lib\site-packages\pandas\core\frame.py in __init__(self, data, index, columns, dtype, copy)
    422             else:
    423                 mgr = init_ndarray(data, index, columns, dtype=dtype,
--> 424                                    copy=copy)
    425 
    426         # For data is list-like, or Iterable (will consume into list)

C:\Users\jenoel\AppData\Local\Continuum\anaconda3\envs\Orion\lib\site-packages\pandas\core\internals\construction.py in init_ndarray(values, index, columns, dtype, copy)
    165         values = maybe_infer_to_datetimelike(values)
    166 
--> 167     return create_block_manager_from_blocks([values], [columns, index])
    168 
    169 

C:\Users\jenoel\AppData\Local\Continuum\anaconda3\envs\Orion\lib\site-packages\pandas\core\internals\managers.py in create_block_manager_from_blocks(blocks, axes)
   1658         blocks = [getattr(b, 'values', b) for b in blocks]
   1659         tot_items = sum(b.shape[0] for b in blocks)
-> 1660         construction_error(tot_items, blocks[0].shape[1:], axes, e)
   1661 
   1662 

C:\Users\jenoel\AppData\Local\Continuum\anaconda3\envs\Orion\lib\site-packages\pandas\core\internals\managers.py in construction_error(tot_items, block_shape, axes, e)
   1687         raise e
   1688     if block_shape[0] == 0:
-> 1689         raise ValueError("Empty data passed with indices specified.")
   1690     raise ValueError("Shape of passed values is {0}, indices imply {1}".format(
   1691         passed, implied))

ValueError: Empty data passed with indices specified.