For the complete documentation index, see llms.txt. This page is also available as Markdown.
BBF (Bollinger bands flat)
Bollinger bands flat indicator provides the same data as Bollinger bands but is displayed in a separate field and thus makes it easy to determine whether prices are in or out of the band.
This indicator consists of:
Positive deviation – shows the value of the positive standard deviation, shifted N times up;
Negative deviation – shows the value of the negative standard deviation shifted N times down;
Delta – shows the difference between the current value and the value of the moving average at a given point.
Calculation
As can be understood from the above, only three components of the indicator are calculated:
Delta = ClosePrice - MA, where
ClosePrice is the current value of the Close price,
MA - the value of the moving average.
Positive deviation = A * D, where
A - deviation parameter value,
D - dispersion relative to the moving average,
Negative deviation = (-1) __A * D
Main parameters
Interval – provides the ability to set the number of confidence intervals, 20 by default;
Deviation – for setting the required deviation, 2 by default;
Type of Moving average – moving average calculation type: Simple, Exponential, Modified, Linear weighted;
Apply to – type of price at which the indicator will be calculated: Close, Open, High, Low, Typical, Medium, Weighted.
