Bar chart

In addition to all of the standard parameters the following apply to bar charts.

Parameters

dataList[dict], DataFrame, Series

Contains inline data to use for the chart. In Markdown, the value must be a JSON string representing a list of dictionaries, as shown in the example below. Each dictionary must contain a label element, with the label for the respective bar, and a value element, representing the height of the bar (which will be scaled appropriately).

In Python, data may be any of:

• A Python list of dictionaries, as above
• A Pandas, FireDucks, Polars or pyarrow DataFrame with a label and value column.
• A Series whose index supplies the labels and entries supply the value.

horizontalBoolean

If true, the bars are drawn horizontally instead of vertically. Defaults to False.

moving_averageBoolean

If true, a moving average curve is added to the graph. Default is False.

x_label_angleNumber (degrees)

Specifies the number of degrees clockwise that the X axis labels should be turned. This is to handle long labels. The default value is 0 (no rotation).

Examples

Bar charts are drawn using the barchart tag, like this:

<barchart
  data='[
        { "label": "Apples", "value": 10 },
        { "label": "Bananas", "value": 20 },
        { "label": "Cherries", "value": 15 },
        { "label": "Grapes", "value": 25 }
    ]'
  width="500"
  height="350"
  colors='["DarkOrange"]'
>
</barchart>

which is rendered like this:

The data is provided as a JSON string containing a list of dictionaries, each of which has a label and value entry. The label value is used for a label for the bar, and is also the content of the tooltip that pops up when you hover over the bar.