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SpcMonitor

lsp_max::primitives

Struct SpcMonitor 

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pub struct SpcMonitor { /* private fields */ }
Expand description

Sliding-window SPC monitor for scan-latency samples (milliseconds).

Call push(sample_ms) after every scan_uri_classified() invocation. Returns the highest-priority alert when a Western Electric rule fires. Priority: Rule1 > Rule4 > Rule2 > Rule3.

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impl SpcMonitor

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pub fn new() -> Self

Create a new monitor with an empty window.

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pub fn mean(&self) -> f64

Current window mean in milliseconds (0.0 with no samples).

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pub fn std_dev(&self) -> f64

Sample standard deviation (Bessel-corrected). Returns 0.0 with <2 samples.

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pub fn push(&mut self, sample_ms: f64) -> Option<SpcAlert>

Push a new duration sample (ms) and evaluate Western Electric rules.

Rules are evaluated against the pre-sample baseline (mean/σ snapshot before update_stats). This matches Western Electric semantics: the control-chart limits are derived from prior data, not from data that includes the very point being evaluated (which would let outliers dilute their own deviation).

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impl Debug for SpcMonitor

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

Formats the value using the given formatter. Read more
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impl Default for SpcMonitor

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fn default() -> Self

Returns the “default value” for a type. Read more

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