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I would like to assign each vertex a random number with the minimum bound equal to the smallest vertex and the maximum equal to the value of the largest without repeats. ie in a 20x20 grid, the vertices would be labeled from 1-400 without repeats but each randomly

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It would be best if you post some code that you have tried so that readers can get a better idea of where your Mathematica problem is. –  Jens Apr 9 '13 at 4:43
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1 Answer 1

Here's one way to get random integers

Partition[RandomSample[Range[16]], 4]

This gets the first 16 integers in random order and formats them in a 4 by 4 block.

enter image description here

You can change the "16" to 400 and the "4" to 20 and get a larger matrix of such values.

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Might be better to just use RandomSample[Range[16]] for the scrambling. –  J. M. Apr 9 '13 at 4:59
    
JM - thanks for the improvement... –  bill s Apr 9 '13 at 5:47
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