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Merge pull request #934 from searoso/patch-1

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Update r.html.markdown
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Adam Bard 2015-01-25 21:13:24 +00:00
commit 553bf62f89
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@ -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