try
?paste
baptiste
On 10 Mar 2009, at 20:01, ig2ar-s...@yahoo.co.uk wrote:
Hi again R-ists,
How do you construct a string that you can pass to system()?
For instance. Say I do
system("echo Hello!")
Hello!
That works. Now the alternative: I need to construct the string like
this
a <- "echo"
b <- "Hello!"
c <- "\n"
cat(a, b, c)
echo Hello!
Looks nice... but see what happens when I try to use it
system(cat(a, b, c))
echo Hello!
Error in system(command, intern) : non-empty character argument
expected
I have googled extensively in and out of r-lists but I can't find a
solution.
Can anybody help?
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_____________________________
Baptiste Auguié
School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
