# Statistic node with variable incoming data

**URL:** <https://discourse.nodered.org/t/statistic-node-with-variable-incoming-data/70962>\
**Category:** General\
**Created:** [21 November 2022 09:17 UTC](https://discourse.nodered.org/t/statistic-node-with-variable-incoming-data/70962 "2022-11-21T09:17:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![nika29](https://avatars.discourse-cdn.com/v4/letter/n/0ea827/32.png) [@nika29](https://discourse.nodered.org/u/nika29)\
**Post date:** [21 November 2022 09:17 UTC](https://discourse.nodered.org/t/statistic-node-with-variable-incoming-data/70962/1 "2022-11-21T09:17:30Z")

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Hello, is there a node to calculate the standard deviation and the mean with the option to change the length of the incoming data in the dashboard? I tried the node 'smooth' but it would only allow me to change the information in the node.

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**Author:** ![zenofmud](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/zenofmud/32/316_2.png) [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Post date:** [21 November 2022 09:44 UTC](https://discourse.nodered.org/t/statistic-node-with-variable-incoming-data/70962/2 "2022-11-21T09:44:04Z")

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You could take a look at [node-red-contrib-prib-functions](https://flows.nodered.org/node/node-red-contrib-prib-functions)

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [20 January 2023 09:44 UTC](https://discourse.nodered.org/t/statistic-node-with-variable-incoming-data/70962/3 "2023-01-20T09:44:39Z")

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