# New to Julia, and want to implement a Log\_Prior

**URL:** <https://discourse.julialang.org/t/new-to-julia-and-want-to-implement-a-log-prior/37627>\
**Category:** New to Julia\
**Tags:** question\
**Created:** [April 15, 2020, 10:00am UTC](https://discourse.julialang.org/t/new-to-julia-and-want-to-implement-a-log-prior/37627 "2020-04-15T10:00:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Rezvious](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rezvious/32/14087_2.png) [@Rezvious](https://discourse.julialang.org/u/Rezvious)\
**Post date:** [April 15, 2020, 10:00am UTC](https://discourse.julialang.org/t/new-to-julia-and-want-to-implement-a-log-prior/37627/1 "2020-04-15T10:00:40Z")

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hello everyone, I’m new in Julia and I wanted to implement a function log\_prior that computes the log of multivariate normal distribution. would you mind please help me to implement it?

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**Author:** ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Post date:** [April 15, 2020, 10:05am UTC](https://discourse.julialang.org/t/new-to-julia-and-want-to-implement-a-log-prior/37627/2 "2020-04-15T10:05:02Z")

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Why not just just `logpdf` and `MvNormal` from

> **[GitHub - JuliaStats/Distributions.jl: A Julia package for probability...](https://github.com/JuliaStats/Distributions.jl)**
>
> A Julia package for probability distributions and associated functions. - GitHub - JuliaStats/Distributions.jl: A Julia package for probability distributions and associated functions.

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**Author:** ![johnh](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/johnh/32/3615_2.png) [@johnh](https://discourse.julialang.org/u/johnh)\
**Post date:** [April 15, 2020, 11:26am UTC](https://discourse.julialang.org/t/new-to-julia-and-want-to-implement-a-log-prior/37627/3 "2020-04-15T11:26:32Z")

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I know that the Github page has it. the documentation is here:

[https://juliastats.org/Distributions.jl/stable/](https://juliastats.org/Distributions.jl/stable/)  
[https://juliastats.org/Distributions.jl/stable/multivariate/](https://juliastats.org/Distributions.jl/stable/multivariate/)

Please show us your code.