Question

Which of the following R code creates a connection to ‘foo.txt’? (a) con <- file(“foo.txt”) (b) open(con, “r”) (c) opencon(con, “r”) (d) ocon(con, “r”) I have been asked this question in an interview for job. This intriguing question originated from Connection Interfaces in portion R – Data Storage, Formats, Objects and Operations of R Programming Select the correct answer from above options

Answer 1

Correct option is (a) con <- file(“foo.txt”) Easy explanation: Open is used for opening connection to ‘foo.txt’ in read-only mode.