interface IItemData {
    [key: string]: any;
}
declare function max(x: number[]): number;
declare function min(x: number[]): number;
declare function sum(x: number[]): number;
declare function mean(x: number[]): number;
declare function mode(x: any[]): any;
export { sum, max, min, mean, mode };
export declare const statMap: {
    [key: string]: any;
};
export declare function getColumn(data: IItemData[], columnName: string): any[];
export declare function getSatByColumn(type: string, column: number[]): any;