Why didn't you do this in R?
> help.search("random sample")
Help files with alias or concept or title matching 'random sample'
using fuzzy matching:
sample(base) Random Samples and Permutations
Type 'help(FOO, package = PKG)' to inspect entry 'FOO(PKG) TITLE'.
>
See ?sample, e.g.
> t1 <- rnorm(70000)
> system.time(t2 <- sample(t1,size=length(t1)))
user system elapsed
0.01 0.00 0.01
Best regards
Frede Aakmann Tøgersen
Scientist
UNIVERSITY OF AARHUS
Faculty of Agricultural Sciences
Dept. of Genetics and Biotechnology
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> -----Oprindelig meddelelse-----
> Fra: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] På vegne af leffgh
> Sendt: 12. november 2007 07:50
> Til: [email protected]
> Emne: [R] how to randomize a vector
>
>
> I have a vector whose length is nearly 70 thousand.
> I need randomize it for 1000 times .
> for randomizing , I mean ,the elements of the vector remain
> intact while their order in the vector get changed randomly.
> I have written a function which seems to be able to solve
> short vectors , but waste a lot of time when dealing with
> the the long vector mentioned above.
>
> --
> View this message in context:
> http://www.nabble.com/how-to-randomize-a-vector-tf4789292.html
> #a13700770
> Sent from the R help mailing list archive at Nabble.com.
>
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> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained, reproducible code.
>
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