Categorical colorscales
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feature
P3
- Dominant language
- JavaScript
- Stars
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- Avg merge
- 2d 12h
- Merged PRs (30d)
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Description
Would it be possible to add the ability to use categorical (ie, String) values in a heatmap, mapped to a color scale?
This is currently possible only by mapping to numeric values and spoofing a colorscale and colorbar.
EG: https://i.stack.imgur.com/1MS66.png
Again apologies, in this case I realise this could require a radical overhaul of that trace
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the heatmap trace and its current numeric colorscale and colorbar path; reproduce the linked categorical example and trace how string values are handled. Done means categorical heatmap values can map directly to a colorscale without numeric spoofing, with the behavior covered by tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- data-visualization
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100