fast-ta 0.2.1

High-performance technical analysis indicators with batch, prepared, and streaming APIs
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//! Statistic Functions.
//!
//! These functions calculate rolling variance, paired statistics, and linear
//! regression projections. Batch APIs write compact outputs.

mod beta;
mod correl;
mod moments;
mod regression;
mod variance;

use crate::Float;

pub use beta::{BETABatchRunner, BETAConfig, BETAStream, BETA};
pub use correl::{CORRELBatchRunner, CORRELConfig, CORRELStream, CORREL};
pub use regression::{
    LINEARREGBatchRunner, LINEARREGConfig, LINEARREGStream, LINEARREG_ANGLEBatchRunner,
    LINEARREG_ANGLEConfig, LINEARREG_ANGLEStream, LINEARREG_INTERCEPTBatchRunner,
    LINEARREG_INTERCEPTConfig, LINEARREG_INTERCEPTStream, LINEARREG_SLOPEBatchRunner,
    LINEARREG_SLOPEConfig, LINEARREG_SLOPEStream, TSFBatchRunner, TSFConfig, TSFStream, LINEARREG,
    LINEARREG_ANGLE, LINEARREG_INTERCEPT, LINEARREG_SLOPE, TSF,
};
pub use variance::{
    STDDEVBatchRunner, STDDEVConfig, STDDEVStream, STDDEV_with_default_nbdev, VARBatchRunner,
    VARConfig, VARStream, VAR_with_default_nbdev, STDDEV, VAR,
};

/// Borrowed paired real-valued inputs for statistic batch computation.
#[derive(Debug, Clone, Copy)]
pub struct PairInput<'a> {
    /// First real-valued input series.
    pub real0: &'a [Float],
    /// Second real-valued input series.
    pub real1: &'a [Float],
}

/// One paired real-valued tick for statistic streaming computation.
#[derive(Debug, Clone, Copy, PartialEq)]
pub struct PairTick {
    /// First real-valued input.
    pub real0: Float,
    /// Second real-valued input.
    pub real1: Float,
}