Struct Rsi 

pub struct Rsi<const N: usize> { /* private fields */ }

Relative Strength Index over a Wilder period N.

Uses Wilder’s smoothing (alpha = 1 / N). The seed averages the first N gains and losses; from there each step is the reciprocal-hoisted fused smoothing avg.mul_add(N - 1, x) / N, identical to wickra_core::Rsi. The first output appears after N + 1 inputs.

Example

use wickra_embed_core::{Indicator, Rsi};

let mut rsi = Rsi::<14>::new();
let mut last = None;
for i in 0..40 {
    last = rsi.update(100.0 + f64::from(i % 5));
}
assert!(last.is_some());

Implementations

impl<const N: usize> Rsi<N>

pub fn new() -> Self

Construct a new RSI over a Wilder period of N.

pub const fn value(&self) -> Option<f64>

Current value if available.

Trait Implementations

impl<const N: usize> Clone for Rsi<N>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<const N: usize> Debug for Rsi<N>

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

Formats the value using the given formatter.

impl<const N: usize> Default for Rsi<N>

fn default() -> Self

Returns the “default value” for a type.

impl<const N: usize> Indicator for Rsi<N>

type Input = f64

Type of one input data point (f64 for a price, Candle for an OHLC bar).

fn update(&mut self, input: f64) -> Option<f64>

Feed one new data point in and return the freshly computed value, or None while still warming up.

fn reset(&mut self)

Reset all internal state, leaving the indicator equivalent to a freshly constructed instance with the same parameters.

fn warmup_period(&self) -> usize

Number of inputs required before the first non-None output.

fn is_ready(&self) -> bool

Whether the indicator has produced at least one value since construction or the last reset.

fn name(&self) -> &'static str

Stable, human-readable indicator name.