import { BaseEstimator } from '../base';
import { Params } from '../base/estimator';
import { FeatureSelectingEstimator } from './common';
export interface RFEProps {
    estimator: FeatureSelectingEstimator;
    nFeaturesToSelect?: number;
    step?: number;
}
export declare class RFE extends BaseEstimator {
    protected estimator: FeatureSelectingEstimator;
    protected nFeaturesToSelect?: number;
    protected step: number;
    protected supportIndices: number[];
    protected rankingState: number[];
    protected fittedEstimator?: FeatureSelectingEstimator;
    protected nFeatures: number;
    constructor(props: RFEProps);
    getParams(): Params;
    fit(X: number[][], y?: number[]): void;
    transform(X: number[][]): number[][];
    predict(X: number[][]): number[];
    score(X: number[][], y: number[]): number;
    getSupport(indices?: boolean): boolean[] | number[];
    get ranking(): number[];
}