在VNPY提供的双均线策略里,如果我想把SMA均线换成EMA的话,是否只需要在这里把sma改成ema?
fast_ma = am.ema(self.fast_window, array=True)
self.fast_ma0 = fast_ma[-1]
self.fast_ma1 = fast_ma[-2]
slow_ma = am.ema(self.slow_window, array=True)
self.slow_ma0 = slow_ma[-1]
self.slow_ma1 = slow_ma[-2]