# Ramp on data in Historian

**URL:** <https://forum.inductiveautomation.com/t/ramp-on-data-in-historian/98605>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [November 14, 2024, 12:49pm UTC](https://forum.inductiveautomation.com/t/ramp-on-data-in-historian/98605 "2024-11-14T12:49:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sebastian\_Gatti](https://avatars.discourse-cdn.com/v4/letter/s/65b543/32.png) [@Sebastian\_Gatti](https://forum.inductiveautomation.com/u/Sebastian_Gatti)\
**Post date:** [November 14, 2024, 12:49pm UTC](https://forum.inductiveautomation.com/t/ramp-on-data-in-historian/98605/1 "2024-11-14T12:49:36Z")

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I would like to know why the historical data is loaded as a ramp at the points observed in this graph when it should be zero and then resume vertically at a value

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/6/26fbcb14ea1c0f4ec9b3ad7c557057e879ede581.png)

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/5/c/5c1407f78990672614daed87e5b37d123aaa72fd.png)

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [November 14, 2024, 1:02pm UTC](https://forum.inductiveautomation.com/t/ramp-on-data-in-historian/98605/2 "2024-11-14T13:02:23Z")

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You have deadband style "auto", which means "analog" for floating point values, and "discrete" for integers. "analog" style uses interpolation to optimize storage of values for things that change smoothly--abrupt changes are assumed to not happen.