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迪马克 - DeM

技术指标迪马克(DeM)以比较当期和前一期价格最大值为基础。如果当期价格最大值位于前一期价格最大值之上,取值为两者之差。如果当期价格最大值低于或等于前一期价格最大值,取值为零。然后,对一定时期内的取值求和并除以其与期间价格最小值的和,就形成了数值指标迪马克。当价格最小值高于前一期水平时零位线固定。

当迪马克跌破30,可期待多方价格反转。如果迪马克指标上升超过70,可期待空方价格反转。

使用长周期进行计算可以抓住市场发展的长期趋势。短期的指标有助于计划交易时机,以最小风险进入市场并处于主要趋势的大潮中。

计算

“i”期的迪马克值计算如下:

DeMax(i)计算:

如果 high(i) > high(i-1),则 DeMax(i) = high(i)-high(i-1),否则 DeMax(i) = 0

DeMin(i)计算:

如果 low(i) < low(i-1),则 DeMin(i) = low(i-1)-low(i),否则 DeMin(i) = 0

迪马克值计算:

DMark(i) = SMA(DeMax, N)/(SMA(DeMax, N)+SMA(DeMin, N))

其中:

SMA - 简单移动平均;

N - 计算使用的周期数。

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