# Problems with line chart using supplied Y axis value

**URL:** https://discuss.elastic.co/t/problems-with-line-chart-using-supplied-y-axis-value/40875
**Category:** Kibana
**Created:** [February 3, 2016, 2:49pm UTC](https://discuss.elastic.co/t/problems-with-line-chart-using-supplied-y-axis-value/40875 "2016-02-03T14:49:53Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![mc1392](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@mc1392](https://discuss.elastic.co/u/mc1392)
#### Post date: [February 3, 2016, 2:49pm UTC](https://discuss.elastic.co/t/problems-with-line-chart-using-supplied-y-axis-value/40875/1 "2016-02-03T14:49:53Z")

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In Kibana 4.2.1, I have data loaded like so:  
\*\* Member Type |Count |@timestamp\*\*

- Member Type A | 234 | 2016-01-28
- Member Type B | 345 | 2016-01-28
- Member Type C | 187 | 2016-01-28

I don't understand how to get a line graph showing the 'Member Type' count changes over time.  
How can I get a chart showing the change in membership categories over time?

Keep in mind my Count field is supplied, so I don't need Kibana to count the records for me.

Here is what I tried, but my numbers seem to get inflated to double the real value:

 ![](https://us1.discourse-cdn.com/elastic/original/2X/9/91ae0db06dec3311209e96fe05090538b5db832e.png)

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### Author: ![tbragin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tbragin/32/45166_2.png) [@tbragin](https://discuss.elastic.co/u/tbragin)
#### Post date: [February 8, 2016, 9:27pm UTC](https://discuss.elastic.co/t/problems-with-line-chart-using-supplied-y-axis-value/40875/2 "2016-02-08T21:27:45Z")

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There is no derivative support in Kibana today. If this is time-series data, you may consider trying Timelion for visualizations that require advanced time-series math: [https://www.elastic.co/blog/timelion-timeline](https://www.elastic.co/blog/timelion-timeline)

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### Author: ![mc1392](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@mc1392](https://discuss.elastic.co/u/mc1392)
#### Post date: [February 8, 2016, 9:38pm UTC](https://discuss.elastic.co/t/problems-with-line-chart-using-supplied-y-axis-value/40875/3 "2016-02-08T21:38:09Z")

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what do you mean by 'derivative' support?  
Im very confused?

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### Author: ![tbragin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tbragin/32/45166_2.png) [@tbragin](https://discuss.elastic.co/u/tbragin)
#### Post date: [February 8, 2016, 9:39pm UTC](https://discuss.elastic.co/t/problems-with-line-chart-using-supplied-y-axis-value/40875/4 "2016-02-08T21:39:38Z")

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If you want to track the _change_ in the metric (e.g. count), I assume you need to take the metric and display its derivative?

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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: [July 6, 2017, 2:02pm UTC](https://discuss.elastic.co/t/problems-with-line-chart-using-supplied-y-axis-value/40875/5 "2017-07-06T14:02:59Z")

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