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  1. 04-15-2009, 09:50 PM #1
    aeo3
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    Default [SOLVED] How to generate a random number from chi-square

    Hi EVerybody,
    I would like to generate a random number from chi-square distribution. But I can not find any class that is able to do that.
    Thanks in advance
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  2. 04-15-2009, 10:14 PM #2
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    Fubarable
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    Default

    This isn't exactly a Swing question (this is the Swing forum). Have you had a look at Google first? What have you found there? Likely you'll need to download the chi-square data tables from some source. SourceForge may have some useful public domain code for this, but again, likely you best bet will be Google. Best of luck.
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  3. 04-16-2009, 12:29 AM #3
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    OrangeDog
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    I think apache have code for that in org.apache.commons.math
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  4. 04-16-2009, 01:42 AM #4
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    CJSLMAN
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    Default hhhmmm... interesting...

    It's been like a million years since I've had anything to do with chi-square. Here are some ideas...

    Create a table (like Fubarable commented) or generate the values in the program and (either way) stuff the values in an array. Then randomly generate array indexes and get/pull the elements/values at those indexes.

    Luck,
    CJSL
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