22 lines
801 B
R
22 lines
801 B
R
# Goal: Special cases in reading files
|
|
|
|
# Reading in a .bz2 file --
|
|
read.table(bzfile("file.text.bz2")) # Requires you have ./file.text.bz2
|
|
|
|
# Reading in a .gz file --
|
|
read.table(gzfile("file.text.gz")) # Requires you have ./file.text.bz2
|
|
|
|
# Reading from a pipe --
|
|
mydata <- read.table(pipe("awk -f filter.awk input.txt"))
|
|
|
|
# Reading from a URL --
|
|
read.table(url("http://www.mayin.org/ajayshah/A/demo.text"))
|
|
|
|
# This also works --
|
|
read.table("http://www.mayin.org/ajayshah/A/demo.text")
|
|
|
|
# Hmm, I couldn't think of how to read a .bz2 file from a URL. How about:
|
|
read.table(pipe("links -source http://www.mayin.org/ajayshah/A/demo.text.bz2 | bunzip2"))
|
|
|
|
# Reading binary files from a URL --
|
|
load(url("http://www.mayin.org/ajayshah/A/nifty_weekly_returns.rda")) |