The example scripts are not working

[ghost]

Hi, it seems there is an issue with signals example scripts repo, it does not work correctly - to be more specific, example_data_pipeline.py crashes, here are the logs

(fastai) synth@zeus:~/repos/numerai-signals(feature/initial-signal)$ python example_data_pipeline.py 
/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/opensignals/data/provider.py:224: FutureWarning: iteritems is deprecated and will be removed in a future version. Use .items instead.
  for start, tickers in ticker_missing_grouped.iteritems():
1/1 [00:00<00:00, 11.09tickers/s]
100%|██████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 1/1 [00:00<00:00,  8.26tickers/s]
⠧ Generating featuresTraceback (most recent call last):
  File "/home/synth/repos/numerai-signals/example_data_pipeline.py", line 56, in <module>
    main(args.output_dir)
  File "/home/synth/repos/numerai-signals/example_data_pipeline.py", line 29, in main
    train, test, live, feature_names = yahoo.get_data(db_dir,
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/opensignals/data/provider.py", line 169, in get_data
    ticker_data, feature_names_aux = features_generator.generate_features(ticker_data, feature_prefix)
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/opensignals/features.py", line 120, in generate_features
    ticker_data[col] = date_groups[feature_prefix_name].transform(
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/pandas/core/groupby/generic.py", line 445, in transform
    return self._transform(
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/pandas/core/groupby/groupby.py", line 1823, in _transform
    return self._transform_general(func, *args, **kwargs)
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/pandas/core/groupby/generic.py", line 478, in _transform_general
    res = func(group, *args, **kwargs)
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/opensignals/features.py", line 121, in <lambda>
    lambda group: pd.qcut(group, 5, labels=False, duplicates='drop')
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/pandas/core/reshape/tile.py", line 377, in qcut
    bins = np.quantile(x_np, quantiles)
  File "<__array_function__ internals>", line 200, in quantile
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/numpy/lib/function_base.py", line 4461, in quantile
    return _quantile_unchecked(
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/numpy/lib/function_base.py", line 4473, in _quantile_unchecked
    return _ureduce(a,
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/numpy/lib/function_base.py", line 3752, in _ureduce
    r = func(a, **kwargs)
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/numpy/lib/function_base.py", line 4639, in _quantile_ureduce_func
    result = _quantile(arr,
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/numpy/lib/function_base.py", line 4745, in _quantile
    take(arr, indices=-1, axis=DATA_AXIS)
  File "<__array_function__ internals>", line 200, in take
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/numpy/core/fromnumeric.py", line 190, in take
    return _wrapfunc(a, 'take', indices, axis=axis, out=out, mode=mode)
  File "/home/synth/mambaforge/envs/fastai/lib/python3.10/site-packages/numpy/core/fromnumeric.py", line 57, in _wrapfunc
    return bound(*args, **kwds)
IndexError: cannot do a non-empty take from an empty axes.
(fastai) synth@zeus:~/repos/numerai-signals(feature/initial-signal)$ 

[fasec]

I get the same error when trying to run the script. Were you able to solve the issue yet?