Struct SignTuple 

pub struct SignTuple {
    pub norm: f32,
    pub drift: f32,
    pub slew: f32,
}

The residual sign tuple σ(k) = (‖r‖, ṙ, r̈).

This is the coordinate on the semiotic manifold M_sem ⊂ ℝ³. All DSFB grammar states, motif classifications, and DSA scores are derived from this object alone.

Fields

norm: f32

‖r(k)‖ — instantaneous residual norm. What threshold detectors see.

drift: f32

ṙ(k) — finite-difference drift rate. What threshold detectors discard.

slew: f32

r̈(k) — slew (trajectory curvature). Abrupt regime change signal.

Implementations

impl SignTuple

pub const fn new(norm: f32, drift: f32, slew: f32) -> Self

Construct a sign tuple directly from components.

pub const fn zero() -> Self

Zero sign tuple — admissible baseline.

pub fn is_outward_drift(&self) -> bool

Returns true if drift is persistently outward (drift > 0).

pub fn is_abrupt_slew(&self, delta_s: f32) -> bool

Returns true if slew magnitude exceeds threshold δ_s.

Trait Implementations

impl Clone for SignTuple

fn clone(&self) -> SignTuple

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SignTuple

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

Formats the value using the given formatter.

impl PartialEq for SignTuple

fn eq(&self, other: &SignTuple) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SignTuple

impl StructuralPartialEq for SignTuple