export interface HistogramConstructor {
    root: HTMLElement;
    axisLabels?: {
        x: string;
        y: string;
    };
    title?: string;
    width?: number;
}
export default class Histogram {
    private chart;
    private width;
    constructor(opts: HistogramConstructor);
    applyData(data: number[], binSize: number): void;
    private calculateBins;
}