data-viz
Installation
SKILL.md
Mental Model
Visualization is choosing the right chart to answer a specific question. Chart type depends on data relationship, not aesthetics.
Chart Selection
| Question | Chart Type |
|---|---|
| Trends over time? | Line chart |
| Compare categories? | Bar chart |
| Show distribution? | Histogram, box plot |
| Relationship between variables? | Scatter plot |
| Parts of whole? | Pie, stacked bar |
| 2D patterns? | Heatmap |
| Financial data? | Candlestick, OHLC |