On Thu, 30 Sep 2010, Matthew Finkbeiner wrote:
I don't have enough RAM for this problem, so I need a work around. This is
what I want to do:
y<- sample(2^32, 100000, replace=FALSE)
y <- trunc(runif( 100000, 1, 2^32+1))
while( any( dup.y <-duplicated(y) ) ) y[dup.y] <-
trunc(runif( sum(dup.y), 1, 2^32+1))
HTH,
Chuck
but my machine won't let me do that. so I now do this:
x<- seq(1,2^32, by=100)
y<- sample(x, 100000, replace=FALSE)
this works fine, but by selecting every 100th item, it introduces a
systematicity that may be problematic.
I've tried this:
x<- seq(1,2^32, by=sample(1:200, 1))
but that yields some unpredictable behavior
so, any suggestions?
Thank you kindly,
Matthew
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Charles C. Berry (858) 534-2098
Dept of Family/Preventive Medicine
E mailto:cbe...@tajo.ucsd.edu UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
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