[GitHub] [superset] atronchi opened a new issue #19131: Add confidence interval capability to time series line charts

[GitBox <gi...@apache.org>]

atronchi opened a new issue #19131:
URL: https://github.com/apache/superset/issues/19131


   Somehow I can't find any mechanism to display a confidence interval in any of the line chart types available in Superset, but it seems like the functionality is there under the hood since the [new prophet based forecasting can display confidence intervals](https://preset.io/blog/2021-3-22-druid-prophet-pt3/).
   
   Would it be possible to add a capability to line charts for displaying a time series with confidence intervals similar to [this Altair example](https://altair-viz.github.io/gallery/line_with_ci.html)?
   <img width="462" alt="image" src="https://user-images.githubusercontent.com/4906224/157980023-6917ac45-6c98-4048-9b53-a2c36970a6fa.png">
   
   Ideally we should support both symmetric and asymmetric confidence intervals, maybe by giving the user additional options in the query section of chart config to provide a column for upper and lower confidence interval bounds.


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