Middle Band = 20-day simple moving average
Upper Band = 20-day SMA + (20-day standard deviation of price x 2)
Lower Band = 20-day SMA - (20-day standard deviation of price x 2)
H**********g 发帖数: 1312
3
SMA还是EMA的好用?
【在 m*z 的大作中提到】 : Middle Band = 20-day simple moving average : Upper Band = 20-day SMA + (20-day standard deviation of price x 2) : Lower Band = 20-day SMA - (20-day standard deviation of price x 2)