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-rw-r--r--r.html.markdown8
1 files changed, 5 insertions, 3 deletions
diff --git a/r.html.markdown b/r.html.markdown
index c3422d2d..e42b1f5e 100644
--- a/r.html.markdown
+++ b/r.html.markdown
@@ -4,6 +4,7 @@ contributors:
- ["e99n09", "http://github.com/e99n09"]
- ["isomorphismes", "http://twitter.com/isomorphisms"]
- ["kalinn", "http://github.com/kalinn"]
+ - ["mribeirodantas", "http://github.com/mribeirodantas"]
filename: learnr.r
---
@@ -478,9 +479,10 @@ class(students[,3]) # "factor"
nrow(students) # 6
ncol(students) # 3
dim(students) # 6 3
-# The data.frame() function converts character vectors to factor vectors
-# by default; turn this off by setting stringsAsFactors = FALSE when
-# you create the data.frame
+# The data.frame() function used to convert character vectors to factor
+# vectors by default; This has changed in R 4.0.0. If your R version is
+# older, turn this off by setting stringsAsFactors = FALSE when you
+# create the data.frame
?data.frame
# There are many twisty ways to subset data frames, all subtly unalike