Streamgraph
Draw a streamgraph of nonnegative series over dates to show changing composition.
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About this tool
Draw a streamgraph of nonnegative series over dates to show changing composition. Use strictly increasing YYYY-MM-DD dates followed by numeric series, with at least two rows. Check band values and the date range; negative values are not accepted for this streamgraph. Data and charts are processed in your browser and can be exported as PNG, SVG or CSV. Examples are illustrative.
How to use
- Use strictly increasing YYYY-MM-DD dates followed by numeric series, with at least two rows.
- Set the title, palette, background and value labels, then generate the chart.
- Check band values and the date range; negative values are not accepted for this streamgraph. Compare the data table before downloading the image or CSV.
Frequently asked questions
Can dates repeat?
No. Each date must be later than the previous row. Combine observations for the same day before importing.
Which inputs are rejected?
Headers must be nonempty and unique, and numeric cells cannot be empty. Up to 1000 rows and 12 numeric series are supported; single-series and specialized charts have further column rules. Administrators may lower the row limit.
Does editing automatically update the chart?
Generate again after edits. Old results are cleared to avoid exporting a chart for stale input. Value labels are hidden above 40 rows; full data remains in the table and CSV.
Discussion & comments
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