Read Lines from a File in R Programming – readLines() Function

readLines() function in R Language reads text lines from an input file. The readLines() function is perfect for text files since it reads the text line by line and creates character objects for each of the lines.

Syntax: readLines(path)

Parameter:
path: path of the file

Example 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

# R program to illustrate
# readLines() function
  
# Store currently used directory
path <- getwd()
  
# Write example text to currently used directory
write.table(x = "the first line\nthe second line\nthe third line",
            file = paste(path, "/my_txt.txt", sep = ""),
            row.names = FALSE, col.names = FALSE, quote = FALSE)
  
# Apply readLines function to txt file
my_txt <- readLines(paste(path, "/my_txt.txt", sep = ""))
my_txt

chevron_right


Output:

[1] "the first line"  "the second line" "the third line"

Example 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

# R program to illustrate
# readLines() function
  
# Store currently used directory
path <- getwd()
  
# Write example text to currently used directory
write.table(x = "the first line\nthe second line\nthe third line",
            file = paste(path, "/my_txt.txt", sep = ""),
            row.names = FALSE, col.names = FALSE, quote = FALSE)
  
# Apply readLines function to first two lines
my_txt_ex2 <- readLines(paste(path, "/my_txt.txt", sep = ""),
                        n = 2)
my_txt_ex2

chevron_right


Output:

[1] "the first line"  "the second line"



My Personal Notes arrow_drop_up

Recommended Posts:


Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.