How to do printf in r?

Question

I\'m looking for how to do printf in r, ie I want to type:

printf(\"hello %d\\n\", 56 )

and get the same output as typing:

Answer 1

printf <- function(...) invisible(print(sprintf(...)))

The outer invisible call may be unnecessary, I'm not 100% clear on how that works.

Answer 2

My solution:

> printf <- function(...) cat(sprintf(...))
> printf("hello %d\n", 56)
hello 56

The answers given by Zack and mnel print the carriage return symbol as a literal. Not cool.

> printf <- function(...) invisible(print(sprintf(...)))
> printf("hello %d\n", 56)
[1] "hello 56\n"
> 
> printf <- function(...)print(sprintf(...))
> printf("hello %d\n", 56)
[1] "hello 56\n"

Answer 3

If you want a function that does print(sprintf(...)), define a function that does that.

printf <- function(...)print(sprintf(...))


printf("hello %d\n", 56)
## [1] "hello 56\n"
 d <- printf("hello %d\n", 56)
## [1] "hello 56\n"
d
## [1] "hello 56\n"

Answer 4

I do it this way:

printf = function(s, ...) cat(paste0(sprintf(s, ...)), '\n')