Bar chart

Use a bar chart to compare a value across discrete categories, such as years, regions or products.

Source

```chart
type: bar
title: Fieldwork's share of company mentions
data:
  inline:
    - { year: "2023", share: 3.0 }
    - { year: "2024", share: 18.2 }
    - { year: "2025", share: 42.8 }
    - { year: "2026*", share: 68.2 }
encoding: { x: year, y: share }
axes: { y: { label: Share of mentions (%) } }
```

Fields that matter

• type: bar with encoding.x for the category and encoding.y for the value
• encoding.color groups bars by a second category
• stack: true stacks the groups of encoding.color instead of placing them side by side
• style.orientation is auto (default), vertical or horizontal
• axes.y.label, format and unit describe the value axis
• axes.y.min and axes.y.max fix the ends of the value axis
• Each category and series slot takes one observation; repeats are rejected

Values appear automatically when complete text fits inside its own bar, or beside an ordinary bar without crossing ink. Large stacked parts use their raw part value; tiny parts stay unlabelled. The text matches the primary readout at the author’s precision.

Interactions

• Hover or focus a bar to read its value; the bar brightens and other series dim.
• Click a legend entry to toggle a series when the chart has several.
• Open the Table view, Download PNG or CSV, or Expand the chart.