# Determining size of DataFrame for memory management

**URL:** <https://discourse.julialang.org/t/determining-size-of-dataframe-for-memory-management/85277>\
**Category:** General Usage\
**Tags:** memory, dataframes\
**Created:** [August 4, 2022, 3:40am UTC](https://discourse.julialang.org/t/determining-size-of-dataframe-for-memory-management/85277 "2022-08-04T03:40:33Z")\
**Posts on this page:** 1\
**Showing post:** 34

<div class="post-metadata">

**Author:** ![dlakelan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dlakelan/32/8491_2.png) [@dlakelan](https://discourse.julialang.org/u/dlakelan)\
**Post date:** [August 4, 2022, 4:04pm UTC](https://discourse.julialang.org/t/determining-size-of-dataframe-for-memory-management/85277/34 "2022-08-04T16:04:00Z")

</div>

> [@jling](#):
>
> never make “dump everything into the DF” first operation

If what you want to do is well known, then subselecting columns makes sense. If you start out wanting to explore what’s in the dataset… sometimes you just want to see what’s in there.

But yeah, point taken!

---

_[View the full topic](https://discourse.julialang.org/t/determining-size-of-dataframe-for-memory-management/85277)._