what is Faytterro Bands? it is a channel indicator like "Bollinger Bands".
what it does? creates a channel using standard deviations and means. thus giving users an idea about the expensive and cheap zones. It uses a special weighted moving average different from standard bollinger bands, it also averages not only price but also deviations.
how it does it? it uses this formulas:
how to use it? its usage is the same as "bollinger band". length represents the number of candles to be taken into account, source represents the source of those candles and stdev represents the coefficient of the standard deviation.