type Vec = readonly number[] | Float64Array;
/** Result of `linearRegression`: the fitted line and its statistics. */
export interface LinregressResult {
    slope: number;
    intercept: number;
    rValue: number;
    rSquared: number;
    pValue: number;
    stdErr: number;
}
/**
 * Simple linear regression `y ≈ slope·x + intercept` by ordinary least squares.
 * `rValue` is Pearson's r; `pValue` is the two-sided test of slope = 0 (t with
 * n−2 df); `stdErr` is the standard error of the slope. Mirrors
 * `scipy.stats.linregress`.
 */
export declare function linearRegression(x: Vec, y: Vec): LinregressResult;
export {};
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