通达信波动率指标公式

SHORT:=5;
LONG:=20;
VIX_INNER:=(HIGH-LOW)/REF(CLOSE,1)*100*SQRT(1);{隐含波动率}
VIX_SHORT:STD(LN(CLOSE),SHORT)*100*SQRT(256)+VIX_INNER;{短期波动率}
VIX_LONG:STD(LN(CLOSE),LONG)*100*SQRT(256)+VIX_INNER;{长期波动率}
DIFF:VIX_SHORT-VIX_LONG,COLORSTICK;