R help - May 2005 - Big-endian / Little-endian byte swap

Hi,

Is there a way to perform Big-endian / Little-endian byte swap in R?

An ugly way is by using readBin/writeBin:

	ByteSwap = function(X, size)
	{
	  writeBin(X, "tmp.dat")
	  readBin("tmp.dat", typeof(X), n = length(x), size=size,
endian="swap")
	}

	> x = (1:5)*pi
	> y = ByteSwap(x,8)
	> z = ByteSwap(y,8)
	> x
	[1]  3.141593  6.283185  9.424778 12.566371 15.707963
	> y
	[1]  3.207376e-192  3.207376e-192  -4.277269e+87  3.207376e-192
7.596046e+145
	> z
	[1]  3.141593  6.283185  9.424778 12.566371 15.707963

But, there has to be some way of doing that without use of temporaty files.


Jarek
=====================================\====                 
 Jarek Tuszynski, PhD.                               o / \ 
 Science Applications International Corporation  <\__,|  
 (703) 676-4192                        ">  \
 Jaroslaw.W.Tuszynski@saic.com                   `    \



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