export declare class DataOperator {
    dataArray: any;
    constructor(data?: any[]);
    newOperation(): DataOperator;
    clone(): DataOperator;
    categorizeNestedDataArray(): any[];
    convert(conversionMap: any): DataOperator;
    filter(dFilter: Function): DataOperator;
    operate(operation: Function): DataOperator;
    operateEach(operation: Function): DataOperator;
    aggregateGroup(groupKeyArray: string[], valueKey: any, operation: any): DataOperator;
    aggregate(groupKey: any, valueKey: any, operation: any): DataOperator;
    sort(comparator: Function): DataOperator;
    sortByValue(valueMap: Function): DataOperator;
    binData(valueMap: Function, binWidth: number): any;
    boxData(valueMap: Function): any;
    pieData(valueMap: Function): any;
    stackData(mapper: any): any;
    logHead(lines?: number): DataOperator;
    tableScraper(tableSelector: string): DataOperator;
}