[BUG] pandas._libs.hashtable.Int64HashTable.get_item KeyError: 0

[LongUEH]

When I write this code for this dataset I got a bug:

df.intent=['counts_of_ingredients']
df

Bug:

C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\formatters.py:345: UserWarning:
Unexpected error in rendering Lux widget and recommendations. Falling back to Pandas display.
Please report the following issue on Github: https://github.com/lux-org/lux/issues 

C:\ProgramData\Anaconda3\lib\site-packages\lux\core\frame.py:689: UserWarning:Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\indexes\base.py", line 2898, in get_loc
    return self._engine.get_loc(casted_key)
  File "pandas\_libs\index.pyx", line 70, in pandas._libs.index.IndexEngine.get_loc
  File "pandas\_libs\index.pyx", line 101, in pandas._libs.index.IndexEngine.get_loc
  File "pandas\_libs\hashtable_class_helper.pxi", line 1032, in pandas._libs.hashtable.Int64HashTable.get_item
  File "pandas\_libs\hashtable_class_helper.pxi", line 1039, in pandas._libs.hashtable.Int64HashTable.get_item
KeyError: 0

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\lib\site-packages\lux\core\frame.py", line 641, in _repr_html_
    self.maintain_recs()
  File "C:\ProgramData\Anaconda3\lib\site-packages\lux\core\frame.py", line 472, in maintain_recs
    custom_action_collection = custom_actions(rec_df)
  File "C:\ProgramData\Anaconda3\lib\site-packages\lux\action\custom.py", line 75, in custom_actions
    recommendation = lux.actions.__getattr__(action_name).action(ldf)
  File "C:\ProgramData\Anaconda3\lib\site-packages\lux\action\enhance.py", line 67, in enhance
    vis.score = interestingness(vis, ldf)
  File "C:\ProgramData\Anaconda3\lib\site-packages\lux\interestingness\interestingness.py", line 149, in interestingness
    chi2_score = chi2_contingency(contingency_table)[0] * 0.9 ** (
  File "C:\ProgramData\Anaconda3\lib\site-packages\scipy\stats\contingency.py", line 241, in chi2_contingency
    observed = np.asarray(observed)
  File "C:\ProgramData\Anaconda3\lib\site-packages\numpy\core\_asarray.py", line 85, in asarray
    return array(a, dtype, copy=False, order=order)
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\series.py", line 882, in __getitem__
    return self._get_value(key)
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\series.py", line 990, in _get_value
    loc = self.index.get_loc(label)
  File "C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\indexes\base.py", line 2900, in get_loc
    raise KeyError(key) from err
KeyError: 0

This data come from the chocolate.csv with a kaggle link: https://www.kaggle.com/soroushghaderi/chocolate-bar-2020

[dorisjlee]

Hi @LongUEH, I was able to reproduce your error and fix this bug in the latest master branch. Here is what the result looks like after the bug fix.

We will incorporate this fix in the upcoming release. Thank you for raising this issue!

[LongUEH]

Wow nice. I'm looking forward to using lux again, when do you guys deploy it @dorisjlee ?

[dorisjlee]

Hi @LongUEH, I'm planning to merge in a couple more issues and fixes before the next mini-release, but hoping that we will roll it out sometime this week. Stay tuned!

[dorisjlee]

Hi @LongUEH, Thanks for the wait! I've added this fix into our most recent release. You can access these updated changes by upgrading to the latest version of Lux:

pip install --upgrade lux-api
jupyter nbextension install --py luxwidget
jupyter nbextension enable --py luxwidget

Please let us know if this addresses the issue mentioned above. Feel free to let us know if there are any other questions that come up!