import { RegressorBase } from '../base';
import { Params } from '../base/estimator';
import { Distance } from '../metrics';
export interface KNeighborsRegressorProps {
    nNeighbors?: number;
    weights?: 'uniform' | 'distance';
    metric?: Distance.IDistanceType;
    p?: number;
}
export declare class KNeighborsRegressor extends RegressorBase {
    private nNeighbors;
    private weights;
    private metric;
    private p;
    private trainX;
    private trainY;
    private fitted;
    constructor(props?: KNeighborsRegressorProps);
    /** @deprecated positional form; prefer the props-object constructor */
    constructor(nNeighbors: number, weights?: 'uniform' | 'distance', metric?: Distance.IDistanceType, p?: number);
    getParams(): Params;
    fit(trainX: number[][], trainY: number[]): void;
    predict(testX: number[][]): number[];
}