Struct MurreyMathLines 

pub struct MurreyMathLines { /* private fields */ }

Murrey Math Lines — T. H. Murrey’s grid that divides the recent trading range into eighths, each acting as support/resistance.

HH = highest high over `period`,  LL = lowest low over `period`
step = (HH − LL) / 8
mm{i}_8 = LL + i · step       for i = 0..8

Murrey Math (a Gann-derived framework) holds that price gravitates to and reverses at the eighth divisions of its range. The 4/8 line is the major pivot (mean); 0/8 and 8/8 are the strongest support and resistance; 3/8 and 5/8 bound the “normal” trading range, while 1/8/7/8 are the weak “stall and reverse” lines. This implementation uses the price-derived eighths over a rolling high-low frame (the practical core of the method) rather than Murrey’s full octave-quantised frame sizing, so the levels track the instrument’s actual recent range.

The first value lands after period inputs; each update rescans the frame in O(period). A degenerate flat frame (HH == LL) collapses every line onto the price.

Example

use wickra_core::{Candle, Indicator, MurreyMathLines};

let mut indicator = MurreyMathLines::new(64).unwrap();
let mut last = None;
for i in 0..120 {
    let base = 100.0 + (f64::from(i) * 0.3).sin() * 10.0;
    let c = Candle::new(base, base + 1.0, base - 1.0, base, 1_000.0, 0).unwrap();
    last = indicator.update(c);
}
assert!(last.is_some());

Implementations

impl MurreyMathLines

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

Construct Murrey Math Lines over a period-bar high-low frame.

Errors

Returns Error::PeriodZero if period == 0.

pub const fn period(&self) -> usize

Configured frame period.

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

Current value if available.

Trait Implementations

impl Clone for MurreyMathLines

fn clone(&self) -> MurreyMathLines

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MurreyMathLines

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

Formats the value using the given formatter.

impl Indicator for MurreyMathLines

type Input = Candle

Type of one input data point (typically f64 for a price, or Candle / Tick).

type Output = MurreyMathLinesOutput

Type of one output value.

fn update(&mut self, candle: Candle) -> Option<MurreyMathLinesOutput>

Feed one new data point into the indicator and return the freshly computed output, or None if the indicator is 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 can be produced.

fn is_ready(&self) -> bool

Whether the indicator has emitted at least one value since the last reset.

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

Stable, human-readable indicator name. Used by chaining and diagnostics.