Struct Sma 

pub struct Sma { /* private fields */ }

Simple Moving Average over a fixed window of prices.

Uses a ring buffer with a running sum — O(1) per push and per value query, no allocations after construction.

Example

use sdk::indicators::Sma;

let mut sma = Sma::new(3).unwrap();
sma.push("100.0".parse().unwrap());
sma.push("200.0".parse().unwrap());
assert!(!sma.is_ready());

sma.push("300.0".parse().unwrap());
assert!(sma.is_ready());
assert_eq!(sma.value().unwrap(), "200.0".parse().unwrap());

Implementations

impl Sma

pub fn new(period: usize) -> Result<Self, InvalidPeriod>

Create a new SMA with the given window size.

Returns Err(InvalidPeriod) if period is zero.

pub fn push(&mut self, price: Price)

Push a new price sample into the window.

Uses checked arithmetic so that extreme Decimal values (near Decimal::MAX) do not panic — the sample is silently dropped when the running sum would overflow.

pub fn is_ready(&self) -> bool

Returns true once the window has received at least period samples.

pub fn value(&self) -> Option<Price>

Returns the current SMA value, or None if the window is not yet full.

pub fn count(&self) -> usize

Number of samples received so far.

pub fn period(&self) -> usize

The configured window size.

Trait Implementations

impl Clone for Sma

fn clone(&self) -> Sma

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Sma

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

Formats the value using the given formatter.