Original code:
import pandas as pd import numpy as np def most_corr(prices): """ :param prices: (pandas.DataFrame) A dataframe containing each ticker's daily closing prices. :returns: (container of strings) A container, containing the two tickers that are the most highly (linearly) correlated by daily percentage change. """ return None #For example, the code below should print: ('FB', 'MSFT') print(most_corr(pd.DataFrame.from_dict({ 'GOOG' : [ 742.66, 738.40, 738.22, 741.16, 739.98, 747.28, 746.22, 741.80, 745.33, 741.29, 742.83, 750.50 ], 'FB' : [ 108.40, 107.92, 109.64, 112.22, 109.57, 113.82, 114.03, 112.24, 114.68, 112.92, 113.28, 115.40 ], 'MSFT' : [ 55.40, 54.63, 54.98, 55.88, 54.12, 59.16, 58.14, 55.97, 61.20, 57.14, 56.62, 59.25 ], 'AAPL' : [ 106.00, 104.66, 104.87, 105.69, 104.22, 110.16, 109.84, 108.86, 110.14, 107.66, 108.08, 109.90 ] })))
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