course
/
r4ds
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Update arrow.qmd (#1568)

This commit is contained in:
Kevin Tappe 2023-08-24 15:26:20 +02:00 committed by GitHub
parent 97577936db
commit b95d846283
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arrow.qmd
View File

@ -69,8 +69,8 @@ curl::multi_download(
## Opening a dataset
Let's start by taking a look at the data.
At 9GB, this file is large enough that we probably don't want to load the whole thing into memory.
A good rule of thumb is that you usually want at least twice as much memory as the size of the data, and many laptops top out at 16 Gb.
At 9 GB, this file is large enough that we probably don't want to load the whole thing into memory.
A good rule of thumb is that you usually want at least twice as much memory as the size of the data, and many laptops top out at 16 GB.
This means we want to avoid `read_csv()` and instead use the `arrow::open_dataset()`:
```{r open-dataset}