OpenBB/website/versioned_docs/version-v3/sdk/reference/ta/bbands.md

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bbands	OpenBB SDK Function

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bbands

Calculate Bollinger Bands

Source Code: [link]

openbb.ta.bbands(data: pd.DataFrame, window: int = 15, n_std: float = 2, mamode: str = "ema")

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Parameters

Name	Type	Description	Default	Optional
data	pd.DataFrame	Dataframe of ohlc prices	None	False
window	int	Length of window to calculate BB	15	True
n_std	float	Number of standard deviations to show	2	True
mamode	str	Method of calculating average	ema	True

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Returns

Type	Description
pd.DataFrame	Dataframe of bollinger band data

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Plots bollinger bands

Source Code: [link]

openbb.ta.bbands_chart(data: pd.DataFrame, symbol: str = "", window: int = 15, n_std: float = 2, mamode: str = "sma", export: str = "", external_axes: Optional[List[matplotlib.axes._axes.Axes]] = None)

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Parameters

Name	Type	Description	Default	Optional
data	pd.DataFrame	Dataframe of ohlc prices	None	False
symbol	str	Ticker symbol		True
window	int	Length of window to calculate BB	15	True
n_std	float	Number of standard deviations to show	2	True
mamode	str	Method of calculating average	sma	True
export	str	Format of export file		True
external_axes	Optional[List[plt.Axes]]	External axes (1 axis is expected in the list), by default None	None	True

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Returns

This function does not return anything

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