From 72d955988d8ce5946615635bf2e2b64c8887d323 Mon Sep 17 00:00:00 2001
From: Laurent Modolo <laurent.modolo@ens-lyon.fr>
Date: Mon, 18 Oct 2021 14:15:20 +0200
Subject: [PATCH] session_4: fix challenge result display
---
session_4/session_4.Rmd | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/session_4/session_4.Rmd b/session_4/session_4.Rmd
index 3a8955e..471665e 100644
--- a/session_4/session_4.Rmd
+++ b/session_4/session_4.Rmd
@@ -185,13 +185,8 @@ Find all flights that:
<details><summary>Solution</summary>
<p>
-
-```{r filter_chalenges_a, eval=TRUE}
-filter(flights, arr_delay >= 60 | arr_delay <= 120)
-```
-
```{r filter_chalenges_b, eval=TRUE}
-filter(flights, dest %in% c("IAH", "HOU"))
+filter(flights, arr_delay >= 120 & dest %in% c("IAH", "HOU"))
```
</p>
</details>
@@ -327,6 +322,7 @@ select(flights, contains("_") & !starts_with("sched") & !starts_with("time"))
```
</p>
</details>
+
- What does the `one_of()` function do? Why might it be helpful in conjunction with this vector?
```{r select_one_of, eval=T, message=F, cache=T}
--
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