Struct SupportResistance

pub struct SupportResistance { /* private fields */ }

A Support/Resistance indicator based on a sliding window of prices and swing detection.

Implementations

impl SupportResistance

pub const DEFAULT_PERIOD: usize = 20usize

Default period (number of prices to consider) for swing detection.

pub const DEFAULT_THRESHOLD: f64 = 0.02f64

Default threshold (2%): used to validate or clean up support/resistance levels.

pub fn new(period: usize, threshold: f64) -> Self

Creates a new SupportResistance indicator.

Arguments

• period - The number of prices to include in the sliding window.
• threshold - The percentage threshold (as a decimal, e.g. 0.02 for 2%) to determine swing levels.

pub fn calculate(&mut self, price: f64) -> Option<SRResult>

Updates the indicator with a new price and returns the current support/resistance result.

This method pushes the new price into the internal price window, updates the detected support and resistance levels, and returns an SRResult if there are enough prices.

Arguments

• price - The new price to add.

Returns

• Some(SRResult) if there are enough prices for calculation.
• None if there aren’t enough prices yet.