superset2/docs/components/chart-components/bar-chart.md

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title: Bar Chart sidebar_position: 1

Bar Chart Component

The Bar Chart component is used to visualize categorical data with rectangular bars.

Props

Prop	Type	Default	Description
data	array	[]	Array of data objects to visualize
width	number	800	Width of the chart in pixels
height	number	600	Height of the chart in pixels
xField	string	-	Field name for x-axis values
yField	string	-	Field name for y-axis values
colorField	string	-	Field name for color encoding
colorScheme	string	'supersetColors'	Color scheme to use
showLegend	boolean	true	Whether to show the legend
showGrid	boolean	true	Whether to show grid lines
labelPosition	string	'top'	Position of bar labels: 'top', 'middle', 'bottom'

Examples

Basic Bar Chart

import { BarChart } from '@superset-ui/chart-components';

const data = [
  { category: 'A', value: 10 },
  { category: 'B', value: 20 },
  { category: 'C', value: 15 },
  { category: 'D', value: 25 },
];

function Example() {
  return (
    <BarChart
      data={data}
      width={800}
      height={400}
      xField="category"
      yField="value"
      colorScheme="supersetColors"
    />
  );
}

Grouped Bar Chart

import { BarChart } from '@superset-ui/chart-components';

const data = [
  { category: 'A', group: 'Group 1', value: 10 },
  { category: 'A', group: 'Group 2', value: 15 },
  { category: 'B', group: 'Group 1', value: 20 },
  { category: 'B', group: 'Group 2', value: 25 },
  { category: 'C', group: 'Group 1', value: 15 },
  { category: 'C', group: 'Group 2', value: 10 },
];

function Example() {
  return (
    <BarChart
      data={data}
      width={800}
      height={400}
      xField="category"
      yField="value"
      colorField="group"
      colorScheme="supersetColors"
    />
  );
}

Best Practices

• Use bar charts when comparing quantities across categories
• Sort bars by value for better readability, unless there's a natural order to the categories
• Use consistent colors for the same categories across different charts
• Consider using horizontal bar charts when category labels are long