# Easy Chart History Tag Bar Chart

**URL:** <https://forum.inductiveautomation.com/t/easy-chart-history-tag-bar-chart/26568>\
**Category:** Ignition\
**Created:** [July 16, 2019, 3:17am UTC](https://forum.inductiveautomation.com/t/easy-chart-history-tag-bar-chart/26568 "2019-07-16T03:17:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![amirsalar.arya.kia](https://avatars.discourse-cdn.com/v4/letter/a/d26b3c/32.png) [@amirsalar.arya.kia](https://forum.inductiveautomation.com/u/amirsalar.arya.kia)\
**Post date:** [July 16, 2019, 3:17am UTC](https://forum.inductiveautomation.com/t/easy-chart-history-tag-bar-chart/26568/1 "2019-07-16T03:17:19Z")

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Hi,  
I’m trying to display a bar for every change in a tag history value on my easy chart with its corresponding label. But at the moment it displays it as follows (The grey looking chart with black line):

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/2X/1/11bf5e9cc33f3420ed70ab8b93bf894faaf193bc.png)

The grey pen is not an area chart but a bar chart. But due to the frequent updating, it’s making it look like that! Any idea how I can submit a value to the easy char from a tag history only on changes to the tag history so it looks like a proper bar chart? If not on changes, can I increase the period which the update occurs?

Thanks in advance and regards,  
Amir