How it works
With a patient case selected, ask Purna to visualize your data. It queries the relevant variants, aggregates the results, and renders an interactive chart right in the chat. Without a case selected, Purna can still generate charts from data you provide or from public database queries.Supported chart types
| Chart Type | Best For | Example Use |
|---|---|---|
| Pie / Donut | Proportions and percentages | Pathogenicity distribution across variants |
| Bar | Comparing categories | Number of variants per gene or functional class |
| Horizontal bar | Long labels and rankings | Genes ranked by variant count |
| Line | Trends over time or sequence | Coverage depth across chromosomal regions |
| Area | Volume and cumulative totals | Cumulative variant count by discovery date |
Example prompts
Adjusting charts
After Purna generates a chart, you can ask it to modify the output in the same conversation:- Change the chart type: “Make this a horizontal bar chart instead”
- Update colors: “Use a red color scheme”
- Add or remove data: “Include VUS variants too”
- Change labels or titles: “Rename the x-axis to Gene Symbol”
