# Power Chart - Ignore Zero values?

**URL:** <https://forum.inductiveautomation.com/t/power-chart-ignore-zero-values/60898>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [June 17, 2022, 4:52pm UTC](https://forum.inductiveautomation.com/t/power-chart-ignore-zero-values/60898 "2022-06-17T16:52:25Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![tyler.robertson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tyler.robertson/32/18299_2.png) [@tyler.robertson](https://forum.inductiveautomation.com/u/tyler.robertson)\
**Post date:** [June 17, 2022, 4:52pm UTC](https://forum.inductiveautomation.com/t/power-chart-ignore-zero-values/60898/1 "2022-06-17T16:52:25Z")

</div>

Hi all - Love the power chart for all kinds of things, especially our HVAC trending - but I was wondering if there was any way to ignore zero values, both for accurate averages and for the auto-range 'y axis. I don’t necessarily want to take them out of the history since if a device is dropping out I want to know how often it’s happening, but for end users they get confused, I get a lot of questions or they don’t trust the numbers.  
I can change the aggregation mode, but we like Last Value to get specific values in time.

Thanks!

---

<div class="post-metadata">

**Author:** ![kyler.kamyszek](https://avatars.discourse-cdn.com/v4/letter/k/a4c791/32.png) [@kyler.kamyszek](https://forum.inductiveautomation.com/u/kyler.kamyszek)\
**Post date:** [June 21, 2022, 6:56pm UTC](https://forum.inductiveautomation.com/t/power-chart-ignore-zero-values/60898/2 "2022-06-21T18:56:32Z")

</div>

You would have to move away from the power chart and just use chart, but see this post. Use a tag history binding with a transform script.

[https://forum.inductiveautomation.com/t/filtering-a-tag-history-binding-dataset/58607](https://forum.inductiveautomation.com/t/filtering-a-tag-history-binding-dataset/58607)

---

<div class="post-metadata">

**Author:** ![tyler.robertson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tyler.robertson/32/18299_2.png) [@tyler.robertson](https://forum.inductiveautomation.com/u/tyler.robertson)\
**Post date:** [June 23, 2022, 4:22pm UTC](https://forum.inductiveautomation.com/t/power-chart-ignore-zero-values/60898/3 "2022-06-23T16:22:14Z")

</div>

Bummer - I don’t know if we would want to give up all the built in options of the power chart.  
I’ll check that out thanks!