Struct Series 

pub struct Series<T> { /* private fields */ }

Sliding historical lookback buffer for streaming time series values. Supports 0-indexed reverse access where 0 is the current bar, 1 is the previous bar, etc.

Implementations

impl<T> Series<T>

pub fn new(capacity: usize) -> Self

Creates a new Series with a maximum lookback history capacity.

pub fn push(&mut self, value: T)

Pushes a new value onto the series, evicting the oldest value if capacity is reached.

pub fn get(&self, offset: usize) -> Option<&T>

Returns a reference to the value at offset bars ago (0 = current, 1 = previous, etc.).

pub fn latest(&self) -> Option<&T>

Returns a reference to the latest value (offset 0).

pub fn len(&self) -> usize

Returns the number of items currently in history.

pub fn is_empty(&self) -> bool

Returns true if the series is empty.

pub fn reset(&mut self)

Clears the series history.

pub fn barssince<F>(&self, predicate: F) -> Option<usize>

where F: Fn(&T) -> bool,

Returns the number of bars since predicate evaluated to true.

pub fn valuewhen<F>(&self, predicate: F, occurrence: usize) -> Option<&T>

where F: Fn(&T) -> bool,

Returns the value when predicate evaluated to true occurrence times ago (0-indexed).

impl Series<f64>

pub fn highest(&self, n: usize) -> Option<f64>

Returns the maximum value in the last n bars.

pub fn lowest(&self, n: usize) -> Option<f64>

Returns the minimum value in the last n bars.

pub fn highestbars(&self, n: usize) -> Option<usize>

Returns the offset (0..n-1) of the highest value in the last n bars.

pub fn lowestbars(&self, n: usize) -> Option<usize>

Returns the offset (0..n-1) of the lowest value in the last n bars.

Trait Implementations

impl<T: Clone> Clone for Series<T>

fn clone(&self) -> Series<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Series<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for Series<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T: PartialEq> PartialEq for Series<T>

fn eq(&self, other: &Series<T>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<T> Serialize for Series<T>

where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: PartialEq> StructuralPartialEq for Series<T>