# Why are missing values not ignored by default?

**URL:** https://discourse.julialang.org/t/why-are-missing-values-not-ignored-by-default/106756
**Category:** Internals & Design
**Tags:** data, missing-values
**Created:** [November 26, 2023, 1:45am UTC](https://discourse.julialang.org/t/why-are-missing-values-not-ignored-by-default/106756 "2023-11-26T01:45:36Z")
**Posts on this page:** 1
**Showing post:** 10

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### Author: ![Eben60](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/eben60/32/13475_2.png) [@Eben60](https://discourse.julialang.org/u/Eben60)
#### Post date: [November 26, 2023, 5:01pm UTC](https://discourse.julialang.org/t/why-are-missing-values-not-ignored-by-default/106756/10 "2023-11-26T17:01:02Z")

</div>

> [@mpeters2](#):
>
> How are these missing values coded? Is there a package that allows arrays with missing values?

> **[ABC of handling missing values in Julia](https://bkamins.github.io/julialang/2021/09/03/missing.html)**
>
> Introduction

> **[The Zen of Missing in Julia](https://bkamins.github.io/julialang/2022/06/17/missing.html)**
>
> Introduction

And especially in this connection may I strongly disagree with your following sweeping statement?

> [@What don't you like about Julia for "serious work"?](https://discourse.julialang.org/t/what-dont-you-like-about-julia-for-serious-work/54591/175):
>
> a culture of terrible documentation.

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