Struct BbValue 

pub struct BbValue { /* private fields */ }

Bollinger Bands output: upper, middle, and lower bands.

The middle band is the SMA. Upper and lower bands are offset by std_dev × σ, where σ is the population standard deviation of the window.

upper  = SMA + k × σ
middle = SMA
lower  = SMA − k × σ

Implementations

impl BbValue

pub fn upper(&self) -> Price

Upper band: SMA + k × σ.

pub fn middle(&self) -> Price

Middle band: SMA of the window.

pub fn lower(&self) -> Price

Lower band: SMA − k × σ.

pub fn width(&self) -> f64

Band width: upper − lower.

Useful for measuring volatility. Narrow width indicates consolidation (Bollinger squeeze); wide width indicates high volatility.

Trait Implementations

impl Clone for BbValue

fn clone(&self) -> BbValue

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BbValue

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for BbValue

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for BbValue

fn eq(&self, other: &BbValue) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for BbValue

impl StructuralPartialEq for BbValue