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Tvern

Shuffle a 1D, or 2D array

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I recently needed to "shuffle" the rows in an array and was surprised to find there was no function for this in array.au3.

A search on the forum returned This method by Yashied.

* I've eliminated the need for multiple passes by switching each index with a random one at least once in one pass, making it much faster.

* I've allowed for sorting 2D arrays, although only the row index is changed. The content and column order of the rows stays the same.

I hope someone finds this helpfull, or suggestions and improvements are welcome. :(

I've used _ArraySort() by Jos van der Zande as a template for the description and errorchecking as this is the first UDF I've posted here. Hope it's ok.

_ArrayRandom.au3

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