WikipediaDataProvider#

class WikipediaDataProvider(token=None, tickers=None, start=datetime.datetime(2016, 1, 1, 0, 0), end=datetime.datetime(2016, 1, 30, 0, 0))[source]#

Bases: BaseDataProvider

Wikipedia data provider.

Please see: https://qiskit-community.github.io/qiskit-finance/tutorials/11_time_series.html for instructions on use.

Parameters:

token (str | None) – Nasdaq Data Link access token, which is not needed, strictly speaking
tickers (str | List[str] | None) – tickers
start (datetime) – start time
end (datetime) – end time

Methods

get_coordinates()#

Returns random coordinates for visualisation purposes.

Return type:: Tuple[ndarray, ndarray]

get_covariance_matrix()#

Returns the covariance matrix.

Returns:: an asset-to-asset covariance matrix.
Raises:: QiskitFinanceError – no data loaded
Return type:: ndarray

get_mean_vector()#

Returns a vector containing the mean value of each asset.

Returns:: a per-asset mean vector.
Raises:: QiskitFinanceError – no data loaded
Return type:: ndarray

get_period_return_covariance_matrix()#

Returns a vector containing the mean value of each asset.

Returns:: a per-asset mean vector.
Raises:: QiskitFinanceError – no data loaded
Return type:: ndarray

get_period_return_mean_vector()#

Returns a vector containing the mean value of each asset.

Returns:: a per-asset mean vector.
Raises:: QiskitFinanceError – no data loaded
Return type:: ndarray

get_similarity_matrix()#

Returns time-series similarity matrix computed using dynamic time warping.

Returns:: an asset-to-asset similarity matrix.
Raises:: QiskitFinanceError – no data loaded
Return type:: ndarray

run()[source]#

Loads data, thus enabling get_similarity_matrix and get_covariance_matrix methods in the base class.