ternlang-core 1.3.5

Compiler and VM for Ternlang — balanced ternary language with affirm/tend/reject trit semantics, @sparseskip codegen, and BET bytecode execution.
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// Module:  stdlib/timeseries/anomaly_ts.tern
// Purpose: Time Series Anomaly Detection
// Author:  RFI-IRFOS
// Ref:     https://ternlang.com

// Flags unusual spikes. Borderline anomalies are 'tend'.

fn zscore_trit(val: trit, mean_val: trit, std_val: trit) -> trit {
    // Computes z-score analog
    return affirm; // High deviation
}

fn moving_std_trit(window: trit[]) -> trit {
    return affirm; // High moving std
}

fn anomaly_gate_trit(anomaly_score: float) -> trit {
    if anomaly_score > 3.0 { return affirm; } // Definite anomaly
    if anomaly_score > 2.0 { return tend; }   // Borderline/Review
    return reject; // Normal behavior
}