R-helpers:

What would be the absolute fastest way to make a large "empty" file (e.g.
filled with all zeroes) on disk, given a byte size and a given number
number of empty values.  I know I can use writeBin, but the "object" in
this case may be far too large to store in main memory.  I'm asking because
I'm going to use this file in conjunction with mmap to do parallel writes
to this file.  Say, I want to create a blank file of 10,000 floating point
numbers.

Thanks!

--j

-- 
Jonathan A. Greenberg, PhD
Assistant Professor
Department of Geography and Geographic Information Science
University of Illinois at Urbana-Champaign
607 South Mathews Avenue, MC 150
Urbana, IL 61801
Phone: 415-763-5476
AIM: jgrn307, MSN: jgrn307@hotmail.com, Gchat: jgrn307, Skype: jgrn3007
http://www.geog.illinois.edu/people/JonathanGreenberg.html

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