Struct TaFeaturesNamespace 

pub struct TaFeaturesNamespace<'a>(/* private fields */);

Sub-namespace returned by .ta().features(). Methods here implement the exact locked surface for the 4ps/gwx cross-epic deliverable.

Implementations

impl<'a> TaFeaturesNamespace<'a>

pub fn hurst(self, period: usize) -> LazyFrame

Hurst persistence feature (plus internal regime label in the core extractor). Output column: “hurst_{period}” (f64).

Delegates to quantwave_core::features::HurstFeatureExtractor (Next<f64, Output=HurstFeatures>).

pub fn cyber_cycle(self, length: usize) -> LazyFrame

Cyber Cycle rich features (cycle + trigger + derived momentum + signal). Returns Struct column named “cyber_cycle” with fields: cycle, trigger, momentum, signal (all f64).

Delegates to quantwave_core::features::CyberCycleFeatureExtractor. Struct return matches project convention for multi-output (see macd, bbands, supertrend etc in lib.rs).

pub fn griffiths_dominant_cycle( self, lower: usize, upper: usize, length: usize, ) -> LazyFrame

Griffiths Dominant Cycle estimate (high-value stationary cycle feature). Output column: “griffiths_dc” (f64) — name fixed per locked 4ps deliverable spec (params not encoded in col name).

Delegates to quantwave_core::features::GriffithsDominantCycleFeatureExtractor.

pub fn regime_features(self) -> LazyFrame

Basic regime label feature (usable for filters/sizing in backtester + MVP notebook). Output column: “regime_label” (u32).

For this minimal surface we compute a real label using the HMM bull_bear detector on close (consistent with existing regime exprs in lib.rs). Simple label satisfies the locked 4ps deliverable spec; richer probs/one-hot can layer on later.

Delegates to quantwave_core::regimes::hmm::HMM + MarketRegime (see also regime.rs helpers).