Double Bollinger Bands is a method of following a trend.

Two deviation at the time with fill color between them, ideal for traders who like visual style of trading.

Parameters

• Length - сenter averaging period line length.
• Deviation 1 - number of standard deviations from the main line 1.
• Deviation 2 - number of standard deviations from the main line 2.
• Color - optional.

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