def loadData(self):
        ''' load data from zip files '''
        data = []

        pb = ProgressBar(len(self.dates)-1)

        for idx, date in enumerate(self.dates):
            data.append(self.loadDate(date))
            pb.animate(idx)

        self.shortRatio = pd.DataFrame(data)
        return self.shortRatio
dataset/ETHPy150Open sjev/trading-with-python/lib/bats.py/BATS_Data.loadData/original