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authorAdam Bard <github@adambard.com>2015-01-25 21:13:24 +0000
committerAdam Bard <github@adambard.com>2015-01-25 21:13:24 +0000
commit553bf62f896f22d8cab43e127693a5af561fe0c7 (patch)
tree6dd249609ee9612c0d01926cceb0fbb47a92d19b
parent63749de9722cca6c96fe186d43afeebc86790c09 (diff)
parent3e40335e96eca14affc8b9ad70bbda1c90e09b62 (diff)
Merge pull request #934 from searoso/patch-1
Update r.html.markdown
-rw-r--r--r.html.markdown7
1 files changed, 7 insertions, 0 deletions
diff --git a/r.html.markdown b/r.html.markdown
index c555d748..447db4b3 100644
--- a/r.html.markdown
+++ b/r.html.markdown
@@ -229,6 +229,13 @@ FALSE != FALSE # FALSE
FALSE != TRUE # TRUE
# Missing data (NA) is logical, too
class(NA) # "logical"
+# Use | and & for logic operations.
+# OR
+TRUE | FALSE # TRUE
+# AND
+TRUE & FALSE # FALSE
+# You can test if x is TRUE
+isTRUE(TRUE) # TRUE
# Here we get a logical vector with many elements:
c('Z', 'o', 'r', 'r', 'o') == "Zorro" # FALSE FALSE FALSE FALSE FALSE
c('Z', 'o', 'r', 'r', 'o') == "Z" # TRUE FALSE FALSE FALSE FALSE