ListShuffler
Name
ListShuffler -- A class to randomize the order of a given Swarm List
Description
ListShuffler randomizes the order of the elements in a List; either the whole list or the num lowest elements. The list must be supplied. An uniform distribution can be supplied, or the system- supplied uniformUnsRand is used. The algorithm is from Knuth. All these methods modify the underlying collection, so any indexes should always be regenerated.
Methods
Phase: Creating
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create: (id <Zone>)
aZone setUniformRandom: dist The create:setUniformRandom method creates the Shuffler and connects the supplied distribution object.
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setUniformRandom: dist the setUniformRandom: method connects the supplied uniform distribution to the Shuffler (run after createBegin:).
Phase: Using
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shufflePartialList: list Num: (unsigned)
num the shufflePartialList:Num method randomizes the order of the 'num' lowest elements of the list, or the whole list if (num > size of list).
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shuffleWholeList: list the shuffleWholeList method randomizes the whole list.