diff options
Diffstat (limited to 'r.html.markdown')
| -rw-r--r-- | r.html.markdown | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/r.html.markdown b/r.html.markdown index 8539b10e..e7486e60 100644 --- a/r.html.markdown +++ b/r.html.markdown @@ -192,7 +192,7 @@ class(-Inf) # "numeric" 2.0 * 2L # 4 # numeric times integer gives numeric 3L / 4 # 0.75 # integer over numeric gives numeric 3 %% 2 # 1 # the remainder of two numerics is another numeric -# Illegal arithmetic yeilds you a "not-a-number": +# Illegal arithmetic yields you a "not-a-number": 0 / 0 # NaN class(NaN) # "numeric" # You can do arithmetic on two vectors with length greater than 1, @@ -662,8 +662,9 @@ require(plyr) ######################### # "pets.csv" is a file on the internet -# (but it could just as easily be be a file on your own computer) -pets <- read.csv("http://learnxinyminutes.com/docs/pets.csv") +# (but it could just as easily be a file on your own computer) +require(RCurl) +pets <- read.csv(textConnection(getURL("http://learnxinyminutes.com/docs/pets.csv"))) pets head(pets, 2) # first two rows tail(pets, 1) # last row |