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  1. Random permutation

    Copyright © 2006, 2007, Syrus Nemat-Nasser
    All rights reserved.
    Author:
    Syrus Nemat-Nasser
    **see readme text for email address**
    Description::
    This SubVI takes a positive I32 integer n as input and generates a uniformly random array of the integers from 0 to n-1 as output. It is equivalent in function to the ‘randperm’ command in MATLAB. If a non-positive value is provided, an error is raised to alert the caller.
    Version History:
    1.0.0:
    Initial release of the code.
    1.1.0:
    Added input validation, error handling, and the option to use "MATLAB mode" and generate a permutation of the integers from 1 to n instead of 0 to n-1, where n is the value wired to the size input. Added a "convert to I32" before feeding the random index to the array functions to eliminate two coercion dots. Updated description to reflect these changes. Changed wiring pattern to 4-2-2-4 and changed icon to accomodate additional terminals.
    2.0.0:
    Added a random seed input to allow the user to optionally seed the random number generator to produce a specific random permutation. The VI now uses the Uniform White Noise PtByPt function which is not available in the LabVIEW Base package. Users who have the Base package may need to use version 1.1.0 which is still included in the distribution.

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