export interface AnomalyResult {
    isAnomaly: boolean;
    zScore: number;
    currentValue: number;
    mean: number;
    stdDev: number;
}
/** Detect anomalies using z-score (>2.5 standard deviations = anomaly) */
export declare function detectAnomaly(currentValue: number, historicalValues: number[], threshold?: number): AnomalyResult;
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