import type { DataXY } from 'cheminfo-types';
import type { PointWithIndex } from '../types/index.ts';
export interface XYMinClosestYPointOptions {
    target?: number;
    /**@default 0 */
    targetIndex?: number;
}
/**
 * Find the closest minimum going down hill
 * @param data - Object that contains property x (an ordered increasing array) and y (an array)
 * @param options - Options
 * @returns - An object with the x/y value
 */
export declare function xyMinClosestYPoint(data: DataXY, options?: XYMinClosestYPointOptions): PointWithIndex;
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