# There is an error in tutorials about the Variational inference

**URL:** https://discourse.julialang.org/t/there-is-an-error-in-tutorials-about-the-variational-inference/79975
**Category:** Probabilistic Programming
**Created:** [April 25, 2022, 8:12am UTC](https://discourse.julialang.org/t/there-is-an-error-in-tutorials-about-the-variational-inference/79975 "2022-04-25T08:12:37Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![huangruiping9](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/huangruiping9/32/35685_2.png) [@huangruiping9](https://discourse.julialang.org/u/huangruiping9)
#### Post date: [April 25, 2022, 8:12am UTC](https://discourse.julialang.org/t/there-is-an-error-in-tutorials-about-the-variational-inference/79975/1 "2022-04-25T08:12:37Z")

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Variational inference (VI) in Turing.jl  
Copy-paste from 5. Linear regression¶  
“remove\_names = filter(x-\>!in(x, [:MPG, :Model]), names(data))” has an error  
should be replace by “remove\_names = filter(x-\>!in(x, [“MPG”, “Model”]),  
names(data))” names(data) is vector of string not symbol

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### Author: ![trahflow](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/trahflow/32/30585_2.png) [@trahflow](https://discourse.julialang.org/u/trahflow)
#### Post date: [April 26, 2022, 2:45pm UTC](https://discourse.julialang.org/t/there-is-an-error-in-tutorials-about-the-variational-inference/79975/2 "2022-04-26T14:45:16Z")

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Hi,

best is probably to report it via their issue tracker on github, or even better directly make a pull request that fixes this. The relevant code is here: [TuringTutorials/09\_variational-inference.jmd at master · TuringLang/TuringTutorials · GitHub](https://github.com/TuringLang/TuringTutorials/blob/master/tutorials/09-variational-inference/09_variational-inference.jmd#L323)