#短周期价量因子
$$ temp1 = Min(low,Delay(close,1))$$ $$ temp2 = Max(high,Delay(close,1)) $$ $$ temp3 = \frac{Close - Sum(temp1,6)}{Sum(temp2-temp1,6)} * 12 * 24 + \frac{close - Sum(temp1,12)}{Sum(temp2 - temp1,12)} * 6 * 24 + \frac{close - Sun(temp1,24)}{Sum(temp2 - temp1,24)} * 6 * 24$$ $$ alpha159 = 100 * \frac{temp3}{612 + 624 + 12*24} $$
$$ alpha171 = -1 \frac{(low - close) * (open ^ 5)}{(close - high)(close ^ 5)}$$