Raff Regression Channel

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Raff Regression Channel

The Raff Regression Channel was developed by Gilbert Raff to provide an accurate tool to define the boundaries of a price trend. Like the Linear Regression Channel, the Raff Regression Channel first draws a regression line and then plots two parallel lines on either side.

The resulting channel defines the boundaries of a price trend.

Position and Edit

Regression Line

First create the central regression line by selecting the date the regression line is to be calculated from using one left mouse click, then move the cursor to the date of the regression line's end point, and click a second time.

The price level at which the clicks occur does not matter. The software uses a mathematical formula to calculate a gradient using the values of the price data type for each trading interval between the selected dates. The default data type is Close.

For more information on the line's method of calculation and display, go to the Regression Line topic.

Channel Lines

Once the user has created the regression line, the software looks for the furthest data point on either side of the regression line and plots two parallel lines on both sides of the regression line at a distance equal to that value.

The resulting channel defines the boundaries of a price trend.

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Properties and Format

There are a number of properties that can be adjusted by the user in the Raff Regression Channel Properties dialog box.

Double left mouse click on the lines to open the Properties dialog box, alternatively, single right mouse click to open the pop-up menu, see below, and select its first command - Properties.

The Properties dialog boxes of all Channel drawing tools share a number of features and controls. These common elements are described and explained in Common Settings for Regression Lines and Channels topic.

Pop-up Menu

The pop-up menu (single right mouse click) for Raff Regression Line has the standard links: Properties, Cut, Copy, Delete, Lock and Help.

In addition to the standard links, the pop-up menu includes the Parallel Trendline command.

Click this to create a parallel line.

Note - This function will create one Trendline parallel to, and the same length as, the central regression line. It will not create a duplicate central Regression line. The resulting line is not a Regression line and will not have regression line functionality and its gradient will not be recalculated. When you move or resize the new line it will adhere to standard trendline functionality.

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