import { Matrix } from '../types';
/**
 * Crops the matrix and returns a window at position `[x,y]` of size `[xlen, ylen]` from the input
 * matrix
 *
 * @method sub
 * @param {Matrix} A - The input matrix
 * @param {Number} x - The starting x offset
 * @param {Number} height - The vertical size of the window
 * @param {Number} y - The starting y offset
 * @param {Number} width - The horizontal size of the window
 * @returns {Matrix} B - The generated subwindow from matrix `c`
 * @public
 * @memberOf matlab
 * @since 0.0.2
 */
export declare function sub({ data: ref, width: refWidth }: Matrix, x: number, height: number, y: number, width: number): Matrix;