Slice Copy error

[varunpan]

Similar to Issue #122

Code (were df is a pandas dataframe)

ta.add_all_ta_features(
    df, 'BTC:open', 'BTC:high', 'BTC:low', 'BTC:close', 'BTC:volume'
)

Error:

A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_adi"] = AccDistIndexIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:94: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_obv"] = OnBalanceVolumeIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:99: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_cmf"] = ChaikinMoneyFlowIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:104: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_fi"] = ForceIndexIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:109: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_mfi"] = MFIIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:122: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_em"] = indicator_eom.ease_of_movement()
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\trend.py:768: RuntimeWarning: invalid value encountered in double_scalars
  dip[i] = 100 * (self._dip[i] / self._trs[i])
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\trend.py:772: RuntimeWarning: invalid value encountered in double_scalars
  din[i] = 100 * (self._din[i] / self._trs[i])

Also tried:

ta.add_all_ta_features(
    df,
    colprefix="LTC:",
    **{k: "LTC:" + k for k in ['open', 'high', 'low', 'close', 'volume']}
)

Error:

A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_adi"] = AccDistIndexIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:94: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_obv"] = OnBalanceVolumeIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:99: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_cmf"] = ChaikinMoneyFlowIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:104: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_fi"] = ForceIndexIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:109: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_mfi"] = MFIIndicator(
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\wrapper.py:122: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame.
Try using .loc[row_indexer,col_indexer] = value instead

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df[f"{colprefix}volume_em"] = indicator_eom.ease_of_movement()
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\trend.py:768: RuntimeWarning: invalid value encountered in double_scalars
  dip[i] = 100 * (self._dip[i] / self._trs[i])
C:\Users\UserName\.virtualenvs\A8wwRToZ\lib\site-packages\ta\trend.py:772: RuntimeWarning: invalid value encountered in double_scalars
  din[i] = 100 * (self._din[i] / self._trs[i])