import { LabelVector } from '../clustering/types';
interface ContingencyResult {
    table: number[][];
    row_sums: number[];
    col_sums: number[];
    n: number;
}
export declare function to_label_array(labels: LabelVector): number[];
export declare function build_contingency_table(labels_true: number[], labels_pred: number[]): ContingencyResult;
export {};