empty string

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Hi!

How to generate a empty string of a precise length without using a loop?
paste(rep(" ",n), collapse="")

gives a string of n spaces.

	-thomas

I need a empty string (char **) to pass it with .C function to a c dll.
The c routine writes the result into the string.

Eryk.

Dipl. bio-chem. Eryk Witold Wolski    @    MPI-MG Dep. Vertebrate Genomics
Ihnestrasse 73 14195 Berlin          'v'
tel: 0049-30-84131285               /   \
mail: wolski at molgen.mpg.de        ---W-W----    http://www.molgen.mpg.de/~wolski

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Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

paste(rep(" ",n), collapse="")

gives a string of n spaces.

Is that more or less efficient/faster or slower than using sprintf:

sprintf(paste("%",n,"s",sep='')," ")

  A quick test shows it to take about two-thirds the CPU time of the 
paste(rep()) solution.

  Not that it matters - I cant see something like this ever being a 
significant part of any calculation!

Baz