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

Feedback on iteration chapter (#1130)

Browse Source
This commit is contained in:
Jennifer (Jenny) Bryan
2022-11-11 06:00:44 -08:00
committed by GitHub
parent 1b82fe4625
commit c4cd9cecfa
5 changed files with 199 additions and 131 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
data-import.qmd
View File

@@ -284,11 +284,11 @@ With the additional `id` parameter we have added a new column called `file` to t
This is especially helpful in circumstances where the files you're reading in do not have an identifying column that can help you trace the observations back to their original sources.
If you have many files you want to read in, it can get cumbersome to write out their names as a list.
Instead, you can use the base `dir()` function to find the files for you by matching a pattern in the file names.
Instead, you can use the base `list.files()` function to find the files for you by matching a pattern in the file names.
You'll learn more about these patterns in @sec-strings.
```{r}
sales_files <- dir("data", pattern = "sales\\.csv$", full.names = TRUE)
sales_files <- list.files("data", pattern = "sales\\.csv$", full.names = TRUE)
sales_files
```