Functions

talib.bbw()

Bollinger band width: the same calculation as `talib.bb`, delivered as one number instead of three bands. Its arguments match `talib.bb` exactly, including `mult` being an int.

Syntax

                talib.bbw(series float source, series int length, series int mult) → series float

Arguments

source required series float Series of values to process.

length required series int Number of bars (length).

mult required series int Standard deviation factor.

Return Type

series float

Example


          //@lipi=2
indicator("Bollinger Band Width (BBW)", overlay=false)
length = input.int(20, title="Length")
mult = input.int(2, title="Multiplier")
[middle, upper, lower] = talib.bb(close, length, mult)
bbw = (upper - lower) / middle
plot(bbw, title="BBW", color=color.blue)
hline(0.5, "0.5 Line", color=color.gray)