http://www.fsmpi.uni-bayreuth.de/~dun3/archives/return-random-subset-of-n-elements-of-a-given-array/98.html This is a collection of interesting stuff that I found on the web or stuff I worked on at the time. Tue, 07 Feb 2012 20:01:32 +0000 hourly 1 http://wordpress.org/?v=3.1.1 http://www.fsmpi.uni-bayreuth.de/~dun3/archives/return-random-subset-of-n-elements-of-a-given-array/98.html/comment-page-1#comment-363317 Andrii Sun, 15 Jan 2012 09:46:29 +0000 http://saftsack.fs.uni-bayreuth.de/~dun3/archives/return-random-subset-of-n-elements-of-a-given-array/98.html#comment-363317 Hi. Thanks a lot for your code. It is very helpful. There is one mistake in your code: int swapPosition = i + m_random.Next(size - i); In this case, swapping will occur only within first symbols of "size" length. So we won't get fully random subset, but random subset of the first symbols in array. The correct is: int swapPosition = i + m_random.Next(m_sourceArray.Count - i); Hi. Thanks a lot for your code. It is very helpful.
There is one mistake in your code:
int swapPosition = i + m_random.Next(size – i);
In this case, swapping will occur only within first symbols of “size” length. So we won’t get fully random subset, but random subset of the first symbols in array.
The correct is:
int swapPosition = i + m_random.Next(m_sourceArray.Count – i);

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