def from_ohlcs(self, ohlcs, price_type):
"""Set prices using a list of ohlc classes."""
dfs = []
for ohlc in ohlcs:
df = DataFrame(getattr(ohlc, price_type),
posix_as_dt(ohlc.timestamps))
dfs.append(df)
prices = concat(dfs, join='outer', axis=1)
prices.columns = [ohlc.symbol for ohlc in ohlcs]
return prices.fillna(method='pad')
def datetimes(self):
"""Get datetimes of posix timestamps."""
return cv.posix_as_dt(self.timestamps)
