CODEWITHSUNDEEP
rterminal
Teletubbi-OS X
Teletubbi-OS X

Reputation: 408

Write R Data direct via Console

Whats the most effective way to write a R Datasample direct in to a File:

In Terminal, typing "R" -> R works.

Creating a Datsample: sample(1.00:20000.00, 10)

How could I write the result direct in to a file? I know the (normal) method:

(e.g.) ls -l > ~/Directory/file.txt

But the > and >> approach is the wrong way in R Console.

Upvotes: 0

Views: 220

Answers (2)

A5C1D2H2I1M1N2O1R2T1
A5C1D2H2I1M1N2O1R2T1

Reputation: 193517

As mentioned in my comment, explore sink. Here's a minimal example. In it, we tell R to start sinking the output to a file. The output is not visible in the R console here.

set.seed(1)
sink(file="sinking.txt")
sample(1.00:20000.00, 10)
sink()

The second call to sink() stops sinking the output to a file. The output shows up in the R console as expected.

sample(1.00:20000.00, 10)
# [1]  4120  3531 13740  7681 15394  9952 14349 19832  7598 15542

sink has other arguments too. append lets you add values to an existing file, and split makes it so that the output is sent to both the R console and the file. Now, we'll resume writing to the previous file. Set it to append the output to the previous file, and to display the output in the console

sink(file="sinking.txt", append=TRUE, split=TRUE)
sample(letters, 10)
#  [1] "y" "f" "p" "c" "z" "i" "a" "h" "x" "v"
sink()

Let's read the file back in and see what was written.

cat(readLines("sinking.txt"), sep = "\n")
#  [1]  5311  7443 11456 18162  4033 17964 18888 13212 12578  1236
#  [1] "y" "f" "p" "c" "z" "i" "a" "h" "x" "v"

Upvotes: 1

agstudy
agstudy

Reputation: 121568

One option is to use capture.output:

capture.output(sample(1.00:20000.00, 10),
             file='~/Directory/file.txt')

This will create a file with the same output as what you see in the console.

Upvotes: 1

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