instantiation

import quandl
import pandas as pd

class MeanReversion:
    def __init__(self, security, start_date, end_date, sma_, lma_):

        self.security = security
        self.start_date = start_date
        self.end_date = end_date
        self.sma_ = sma_
        self.lma_ = lma_
        self.data = quandl.get("WIKI/{}".format(self.security), 
                              start_date=self.start_date, 
                              end_date=self.end_date)
                                            
    def moving_average_df(self, ma):

        return pd.DataFrame(self.data['Adj. Close'].rolling(window=ma, 
                                                           center=False).mean().dropna())