base de dados com mais acoes

[pereira]

acoes_df = pd.DataFrame()
for acao in acoes:
acoes_df[acao] = data.DataReader(acao, data_source=’yahoo’, start=’2015-01-01′)

erro

—————————————————————————

ValueError Traceback (most recent call last)

/usr/local/lib/python3.6/dist-packages/pandas/core/frame.py in _ensure_valid_index(self, value)
3169 try:
-> 3170 value = Series(value)
3171 except (ValueError, NotImplementedError, TypeError) as err:

6 frames
ValueError: The truth value of a DataFrame is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().

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

ValueError Traceback (most recent call last)

/usr/local/lib/python3.6/dist-packages/pandas/core/frame.py in _ensure_valid_index(self, value)
3173 “Cannot set a frame with no defined index ”
3174 “and a value that cannot be converted to a Series”
-> 3175 ) from err
3176
3177 # GH31368 preserve name of index

ValueError: Cannot set a frame with no defined index and a value that cannot be converted to a Series
 

[Fábio Spak]

Boa noite Pereira, esta faltando o atributo [‘Close’]. Veja abaixo como deve ficar:

acoes_df = pd.DataFrame()
for acao in acoes:
  acoes_df[acao] = data.DataReader(acao, data_source='yahoo', start='2015-01-01')['Close']

Fabio

[Author]

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