Absolute Retracement
The Absolute Retracement study is an Aspen trendline draw function. Selecting TD Absolute Retracement from the Trendline Functions menu prepares the trendline cursor to draw the
Absolute Retracement. Clicking on a bar in the chart defines an anchor point,
or reference bar, for the retracement. The retracement lines can be modified or
deleted in the same way as other Aspen trendlines, and their respective
retracement levels are available in the cursor window.
A click is assumed to refer to the high, low, open, or close of a displayed
bar; the software locates the nearest such point and uses it as the exact
reference point. To be more precise, the software first finds the horizontally
nearest bar column, then chooses the vertically closest reference point within that
column. If multiple data items are on display, the one with the vertically
closest reference point is chosen. (Formula data items are not eligible to be
chosen.) Only high and low points are eligible.
For further information on Absolute Retracement, please refer to Thomas R.
DeMark, The New Science of Technical Analysis, New York: John Wiley & Sons, 1994, Chapter 2.
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