# TSVB Metric to display score change

**URL:** <https://discuss.elastic.co/t/tsvb-metric-to-display-score-change/319577>\
**Category:** Kibana\
**Created:** [November 22, 2022, 5:39pm UTC](https://discuss.elastic.co/t/tsvb-metric-to-display-score-change/319577 "2022-11-22T17:39:52Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![azulgrana](https://avatars.discourse-cdn.com/v4/letter/a/df788c/32.png) [@azulgrana](https://discuss.elastic.co/u/azulgrana)\
**Post date:** [November 22, 2022, 5:39pm UTC](https://discuss.elastic.co/t/tsvb-metric-to-display-score-change/319577/1 "2022-11-22T17:39:52Z")

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Hi there,

I have a TSVB metric w/ a cumulative sum that shows the "Score" for the environment and I'm looking at adding a 2nd metric to the same visualization to display +/- offset (score change) over the last 7 days. Could someone please guide me on which specific function and criteria I need to represent this?

TIA!

Azulgrana

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**Author:** ![azulgrana](https://avatars.discourse-cdn.com/v4/letter/a/df788c/32.png) [@azulgrana](https://discuss.elastic.co/u/azulgrana)\
**Post date:** [November 23, 2022, 12:52am UTC](https://discuss.elastic.co/t/tsvb-metric-to-display-score-change/319577/2 "2022-11-23T00:52:58Z")

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A derivative aggregation of a cumulative sum seems to be the answer here. The problem I have now is that I don't have data for every single day so the offset 7d does not truly represents 7 consecutive days, it represents 7 days where I have data. Need to figure out how to approach this last part ...

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**Author:** ![stephenb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stephenb/32/40856_2.png) [@stephenb](https://discuss.elastic.co/u/stephenb)\
**Post date:** [November 23, 2022, 1:07am UTC](https://discuss.elastic.co/t/tsvb-metric-to-display-score-change/319577/3 "2022-11-23T01:07:45Z")

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Hi @azulgrana  
Are you just saying you want the serial difference from 7 Days ago?  
So today is 95 last week was 98 so show -3?  
Day before was 77 and 7 days before was 85 so show +8?

Pretty Sure you can do that in Lens with Serial Difference and Offset... take a look, I will to

Think use Lens formula

`differences(count(shift='7d'))`

Now cumulative Sum let me see..something like  
`differences(cumulative_sum(sum(cloudfoundry.rtr.bytes_sent)),shift='7d')`

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<div class="post-metadata">

**Author:** ![azulgrana](https://avatars.discourse-cdn.com/v4/letter/a/df788c/32.png) [@azulgrana](https://discuss.elastic.co/u/azulgrana)\
**Post date:** [November 29, 2022, 2:25am UTC](https://discuss.elastic.co/t/tsvb-metric-to-display-score-change/319577/4 "2022-11-29T02:25:50Z")

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Thanks @stephenb I will this a try

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 27, 2022, 1:32am UTC](https://discuss.elastic.co/t/tsvb-metric-to-display-score-change/319577/5 "2022-12-27T01:32:44Z")

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 24, 2023, 1:33am UTC](https://discuss.elastic.co/t/tsvb-metric-to-display-score-change/319577/6 "2023-01-24T01:33:16Z")

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