How to: value(now) - value(some time ago) to see Difference over time?

[crakerkai]

Dear everyone,

I want to create the dashboard that can view the value(now) - value(some time ago) to see difference over time.
Can someone give some ideal?

Kibana version:
7.3.1

[lukeelmers]

Hi @crakerkai -

In order to do what you're describing, you may want to look into bucket script aggregations. These are currently supported in TSVB, but not in other visualizations. You could use a bucket script to compute the difference in values between two aggregations for different time ranges.

I'm going to go ahead and close this issue for now... Questions like these are best suited for our discussion forums, as we reserve the Github repo for tracking bugs & enhancements. I'd encourage you to drop by the forums if you have any follow-up questions!