import { GroupDataPoint, DataPoint } from '../types/data-point.js';
/**
 * Given an unordered list sorts descendingly and groups the list values based
 * on the distance between them, considering the given threshold and an accessor
 * to the numeric value
 *
 * @param list - unordered list to group
 * @param threshold - maximum distance allowed between two numeric values
 * @param accessor - accessor to the numeric value to group by
 */
export declare const groupByThreshold: <T>(list: T[], threshold: number, accessor: (value: T) => number) => T[][];
export declare const getGroupedDataPointsByCoordinate: (xPoints: DataPoint[], coordinate: "y" | "x") => GroupDataPoint;