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MathGroup Archive 2004

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shuffling (randomizing) a series

  • To: mathgroup at
  • Subject: [mg52857] shuffling (randomizing) a series
  • From: George Szpiro <george at>
  • Date: Wed, 15 Dec 2004 04:26:16 -0500 (EST)
  • Sender: owner-wri-mathgroup at


I would like to put a series of numbers (of the order of 10^7 numbers) into 
random order, i.e., to shuffle it. In Excel I would simply add a column next 
to the column with the data, and then sort by the random number. But I could 
only do this for 64000 numbers. How can I do that in Mathematica for a file with a 
much larger series?

(could you please copy any answer to my address:
george at



George Szpiro
Neue Zürcher Zeitung (Switzerland)
POB 6278
Jerusalem 91060

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