{{alias}}( [data,] [options] )
    Returns a Unicode sparkline instance.

    The following chart types are supported:

    - column: column chart (e.g., ▃▆▂▄▁▅▅).
    - line: line chart (e.g., ⡈⠑⠢⠔⠒⠒⠒).
    - tristate: tristate chart (e.g., ▄▀──▀▄▄▀).
    - up-down: up/down chart (e.g., ↓↑↑↑↑↓↓↑).
    - win-loss: win/loss chart (e.g., ┌╵└┴╵╷╷╵).

    The `data` argument takes precedence over the `data` option.

    Parameters
    ----------
    data: ArrayLike|ndarray (optional)
        Chart data.

    options: Object (optional)
        Options.

    options.autoRender: boolean (optional)
        Boolean indicating whether to re-render on a 'change' event. Default:
        false.

    options.bufferSize: integer|null (optional)
        Data buffer size. If provided, data is kept in a first-in first-out
        (FIFO) buffer which cannot exceed the buffer size. Default: +infinity.

    options.data: ArrayLike|ndarray (optional)
        Chart data.

    options.description: string (optional)
        Chart description.

    options.infinities: boolean (optional)
        Boolean indicating whether to encode infinite values. Default: false.

    options.isDefined: Function (optional)
        An accessor function indicating whether a datum is defined.

    options.label: string (optional)
        Data label.

    options.type: string (optional)
        Chart type. Default: 'column'.

    options.yMax: number|null (optional)
        Maximum value of the y-axis domain. If `null`, the value is computed
        from the data. Default: null.

    options.yMin: number|null (optional)
        Minimum value of the y-axis domain. If `null`, the value is computed
        from the data. Default: null.

    Returns
    -------
    chart: ColumnChart
        Column chart instance.

    chart.autoRender
        Rendering mode. If `true`, an instance renders on each 'change' event;
        otherwise, rendering must be triggered manually.

    chart.bufferSize
        Data buffer size.

    chart.description
        Chart description.

    chart.data
        Chart data.

    chart.label
        Data label.

    chart.infinities
        Indicates whether to encode infinite values.

    chart.isDefined( d, i )
        An accessor function which defines whether a datum is defined. This
        accessor is used to define how missing values are encoded. The default
        behavior is to ignore values which are `NaN`.

    chart.render()
        Renders a column chart sparkline.

    chart.type
        Chart type.

    chart.yMax
        Maximum value of the y-axis domain. If set to `null`, when accessed, the
        returned value is computed from the data.

    chart.yMin
        Minimum value of the y-axis domain. If set to `null`, when accessed, the
        returned value is computed from the data.

    Examples
    --------
    > var data = [ 1.0, 5.0, 3.0, 2.0, 4.0, 4.0, 3.0 ];
    > var chart = new {{alias}}( data );
    > chart.render()
    '▁█▅▃▆▆▅'
    > chart.type = 'line';
    > chart.render()
    '⡈⠑⠢⠔⠒⠒⠒'

    See Also
    --------