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Update r.html.markdown

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Added logical operators that were missing.
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searoso 2015-01-20 21:34:18 +03:00
parent 6915f5bfd0
commit 209dc039ec
1 changed files with 7 additions and 0 deletions
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@ -229,6 +229,13 @@ FALSE != FALSE # FALSE
FALSE != TRUE # TRUE
# Missing data (NA) is logical, too
class(NA) # "logical"
# Use for | 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