import { BaseEstimator } from '../base';
import { Params } from '../base/estimator';
export interface EmpiricalCovarianceProps {
    assumeCentered?: boolean;
}
export declare function empiricalMoments(X: number[][], assumeCentered: boolean): {
    location: number[];
    covariance: number[][];
    centered: number[][];
};
export declare class EmpiricalCovariance extends BaseEstimator {
    protected assumeCentered: boolean;
    protected locationState: number[];
    protected covarianceState: number[][];
    protected precisionState: number[][];
    constructor(props?: EmpiricalCovarianceProps);
    getParams(): Params;
    protected setEstimate(location: number[], covariance: number[][]): void;
    fit(X: number[][]): void;
    mahalanobis(X: number[][]): number[];
    score(X: number[][]): number;
    errorNorm(comparison: number[][], scaling?: boolean, squared?: boolean): number;
    get location(): number[];
    get covariance(): number[][];
    get precision(): number[][];
}