# Prevent outlier reading going to Influx

**URL:** https://discourse.nodered.org/t/prevent-outlier-reading-going-to-influx/81308
**Category:** General
**Created:** [14 September 2023 12:30 UTC](https://discourse.nodered.org/t/prevent-outlier-reading-going-to-influx/81308 "2023-09-14T12:30:05Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![E1cid](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/e1cid/32/77971_2.png) [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [14 September 2023 13:00 UTC](https://discourse.nodered.org/t/prevent-outlier-reading-going-to-influx/81308/2 "2023-09-14T13:00:06Z")

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It is poor etiquette to hijack another topic I have moved it to its own, to prevent confusing replies.

Have you looked at filter node? It can be set to block messages on a percentage change.  
If you supply an array with a set of readings including an outlier, You will probably get far more examples. (09/13 to 09/14 looks like a good data set to play with).

Any one who wants more ideas can look at this topic to [Smoothing a value and check for extrems](https://discourse.nodered.org/t/smoothing-a-value-and-check-for-extrems/81303)

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