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Merge pull request #944 from acganesh/patch-1

[r/en] Add definition of parakeet variable
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Levi Bostian
2015-01-29 09:21:28 -06:00

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@@ -259,6 +259,7 @@ levels(infert$education) # "0-5yrs" "6-11yrs" "12+ yrs"
# NULL # NULL
# "NULL" is a weird one; use it to "blank out" a vector # "NULL" is a weird one; use it to "blank out" a vector
class(NULL) # NULL class(NULL) # NULL
parakeet = c("beak", "feathers", "wings", "eyes")
parakeet parakeet
# => # =>
# [1] "beak" "feathers" "wings" "eyes" # [1] "beak" "feathers" "wings" "eyes"