On 6 Aug 2009, at 17:21, Mac First wrote:
Not strictly Cocoa, but a trick I recently incorporated to remove
the mod-bias is (email code):
float frand = (random() * 1.0) / (RAND_MAX * 1.0); // gives
0.0-0.99999...
int myRand = frand * 15; // to get a number from 0-14, inclusive.
That isn't completely unbiased either. It is an *improvement*, to be
sure (though you could do the same thing with integers rather than
resorting to floating-point). (Take a look at the link I posted
previously where it discusses this technique also.)
And as for "Not strictly Cocoa", this entire thread is "Not strictly
Cocoa", as I may already have mentioned...
Kind regards,
Alastair.
--
http://alastairs-place.net
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