# Smoothing tracks with a Kalman filter

**URL:** <https://discourse.julialang.org/t/smoothing-tracks-with-a-kalman-filter/24209>\
**Category:** General Usage\
**Tags:** question, kalman, smoothing\
**Created:** [May 14, 2019, 2:39pm UTC](https://discourse.julialang.org/t/smoothing-tracks-with-a-kalman-filter/24209 "2019-05-14T14:39:37Z")\
**Posts on this page:** 1\
**Showing post:** 21

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**Author:** ![yakir12](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/yakir12/32/297_2.png) [@yakir12](https://discourse.julialang.org/u/yakir12)\
**Post date:** [May 27, 2020, 8:56am UTC](https://discourse.julialang.org/t/smoothing-tracks-with-a-kalman-filter/24209/21 "2020-05-27T08:56:59Z")

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Of course!  
Go to [GitHub - yakir12/CoffeeBeetles.jl: Code base for "A dung beetle that homes without the use of landmarks"](https://github.com/yakir12/CoffeeBeetles.jl) (install but you don’t need to run `main()`), and then if you run:

```julia
data = CoffeeBeetles.deserialize(CoffeeBeetles.datafile)
df = CoffeeBeetles.getdf(data)

```

that `df` is a data frame with tons of tracks. To access the raw coordinates of a track in the first row of that data frame, you can do this:

```julia
t = df.track[1]
t.rawcoords

```

The smoothed ones (again via a smoothing spline) are in ` t.coords`.

Have at it!!!

(and any comments on anything are more than welcomed!)

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_[View the full topic](https://discourse.julialang.org/t/smoothing-tracks-with-a-kalman-filter/24209)._