Charts and Trends Components
Charts explain patterns that are hard to see in rows alone.
| Component | Best for | Common fields |
|---|---|---|
| Chart | Bar, line, area, and basic category/time comparisons. | Category/date plus value. |
| Combo Chart | Comparing values with different visual encodings. | Axis, columns, lines, legend. |
| Donut | Part-to-whole categories. | Category plus value. |
| Scatter / Bubble | Relationship between two or three numeric measures. | X, Y, optional size. |
| Waterfall | Movement from start to end value. | Step/category plus value. |
| Treemap | Hierarchical or grouped contribution. | Group, size, optional color. |
| Funnel | Stage progression or conversion. | Stage plus metric. |
| Box Plot | Distribution and outliers. | Category plus numeric samples. |
| Decomposition Tree | Break down a measure by dimensions. | Measure plus breakdown dimensions. |
Chart rule
Pick one main message per chart. If one component needs multiple legends, axes, and annotations to explain itself, split it into simpler visuals.