Channel-based indicator Fractal Channel draws a channel based on fractals with a given dimension.
It has one adjustable parameter:
- Farme - frame size for searching for the fractal
Frame shall be a window consisting the number of bars, in which one fractal must fit.
For a 1x1 fractal (left bar + central bar + right bar), the frame size must be 3,
For a 2x2 fractal, the frame size = 5 (two left bars + one central bar + two right bars), etc.

Fig.1. Frame = 3 (standard fractal size)

Fig. 1. Fractal Channel + Fractals, Frame = 3