# \#window

**URL:** https://discourse.julialang.org/tag/window/846.md

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## [Taking rolling functions seriously](https://discourse.julialang.org/t/taking-rolling-functions-seriously/70257)

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**Author:** [@JeffreySarnoff](https://discourse.julialang.org/u/JeffreySarnoff)\
**Replies:** 0\
**Last updated:** [October 23, 2021, 8:40am UTC](https://discourse.julialang.org/t/taking-rolling-functions-seriously/70257 "2021-10-23T08:40:23Z")

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Generally speaking, a to roll a function over windowed data is to apply that function to consecutive data subspans, where the length (for vector data) of each subspan is given by the window size. The language has advanc…