export interface HistogramReport {
    type: 'category' | 'int' | 'float';
    data: Record<string, number>;
    attrLabel: string;
    recordCountLabel: string;
}
export declare const MAX_DEFUALT_NUM_BINS = 10;
export declare const isTypeCategory: (type: HistogramReport['type']) => boolean;
export declare const isTypeInt: (type: HistogramReport['type']) => boolean;
export declare const isTypeFloat: (type: HistogramReport['type']) => boolean;
export declare function getReportSummary(report: HistogramReport, applyLog: boolean): {
    min: number;
    max: number;
    avg: number;
    median: number;
};
export declare function getDefaultBinSize(report: HistogramReport, applyLog: boolean): number;
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