[R] string concatenate across rows of a matrix??

[Albert Kim]

Is there a simple way to string-concatenate across the rows of a matrix or
data.frame into a vector of strings?  perhaps using paste() or
something like it?

That is, I want to map from something like x2 below:

	> x2 <- data.frame(C1 = letters[1:4], C3=1:4, C3=letters[11:14])
	> x2
	  C1 C3 C3
	1  a  1  k
	2  b  2  l
	3  c  3  m
	4  d  4  n

to something like:

	[1]  "a  1  k"
	[2]  "b  2  l"
	[3]  "c  3  m"
	[4]  "d  4  n"

Sincerely,
Al Kim
Research Scientist
Department of Psychology
University of Washington, Box 351525
Seattle, WA. 98195, USA
E-Mail:  alkim at u.washington.edu;  Tel: (206)543-2395



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