Source: https://fxcodebase.com/code/viewtopic.php?f=17&t=10552
Forum: 17 · Topic 10552 · 2 post(s)
Alexander.Gettinger · Wed Dec 28, 2011 7:55 am
Formula: UpDownBars=lwma(up)-lwma(down), where lwma - linear weighted moving average, up, down are a sum of square roots from positive and negative values (Close-Open).

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The indicator was revised and updated
Apprentice · Mon Mar 20, 2017 8:20 am
Indicator was revised and updated.