adambard/learnxinyminutes-docs
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Update r.html.markdown

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Following R best practices, it's recommened to use only double-quotes.
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Adnane Hmunna 2020-12-13 15:29:18 +01:00 committed by GitHub
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commit 27f7f03401
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1 changed files with 4 additions and 4 deletions
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@ -211,10 +211,10 @@ c(1,2,3,1,2,3) * c(1,2,1,2,1,2)
# There's no difference between strings and characters in R
"Horatio" # "Horatio"
class("Horatio") # "character"
class('H') # "character"
class("H") # "character"
# Those were both character vectors of length 1
# Here is a longer one:
c('alef', 'bet', 'gimmel', 'dalet', 'he')
c("alef", "bet", "gimmel", "dalet", "he")
# =>
# "alef" "bet" "gimmel" "dalet" "he"
length(c("Call","me","Ishmael")) # 3
@ -250,8 +250,8 @@ c(TRUE,FALSE,TRUE) & c(FALSE,TRUE,TRUE) # FALSE FALSE TRUE
# 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
c("Z", "o", "r", "r", "o") == "Zorro" # FALSE FALSE FALSE FALSE FALSE
c("Z", "o", "r", "r", "o") == "Z" # TRUE FALSE FALSE FALSE FALSE
# FACTORS
# The factor class is for categorical data