What is the reverse of scan() in R?

Question

I want to simply write a space-separated list of integers to a file in R. I can read a space-separated list from a file using scan, but is there function for doing the reverse? In other words, how can I write a vector of integers to a file in such a way that I can scan the file later to read the same vector back in?

I don't want anything fancy like save or write.table.

Answer 1

I think what you want is to supply a file agrument to cat(), which writes to the file without any extras.

> cat(1:20,file="foobar.txt")
> x <- scan("foobar.txt") 
Read 20 items
> x  [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20