# Show a boolean tag history on sparkline

**URL:** <https://forum.inductiveautomation.com/t/show-a-boolean-tag-history-on-sparkline/27111>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [August 2, 2019, 12:02pm UTC](https://forum.inductiveautomation.com/t/show-a-boolean-tag-history-on-sparkline/27111 "2019-08-02T12:02:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mcarritt1](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/mcarritt1/32/4262_2.png) [@mcarritt1](https://forum.inductiveautomation.com/u/mcarritt1)\
**Post date:** [August 2, 2019, 12:02pm UTC](https://forum.inductiveautomation.com/t/show-a-boolean-tag-history-on-sparkline/27111/1 "2019-08-02T12:02:26Z")

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Is there anyway to get a sparkline to show boolean tag history like the easy chart does in this picture?

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/d/d51160d7a236c8e5d50b378dc662be8f65a5c29b.png)

I’ve tried messing around with the system.tag.queryTagHistory() bound to the sparkline data, but can’t get it.

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**Author:** ![richardNZ15](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/richardnz15/32/33373_2.png) [@richardNZ15](https://forum.inductiveautomation.com/u/richardNZ15)\
**Post date:** [August 5, 2020, 11:19pm UTC](https://forum.inductiveautomation.com/t/show-a-boolean-tag-history-on-sparkline/27111/2 "2020-08-05T23:19:41Z")

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Hi i’m trying to do the same thing. I had hoped turning on “Prevent interpolation” on the Tag query on the sparkline data binding would help. But no luck.