
Dear R-helpers,

I have a numeric vector, like:

x <- c(1,2,3,4,5,6)

I make this into a string for output to a text file, separated by \n:

paste(x, collapse="\n")

Is there a way to alternate the collapse argument? So between the first two elements of x, I want to separate by " ", then by "\n", and so forth.
The result should then look like:
"1 2\n3 4\n5 6"

(This way I get 2 elements of x on each line using writeLines, instead of one or all).
I could do this in some ugly loop, but surely there is a better way?

thanks,
Remko






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