Thanks for looking into it so quickly. all the best, Peiman
*www.peimankhosravi.co.uk <http://www.peimankhosravi.co.uk> || RSS Feed <http://peimankhosravi.co.uk/miscposts.rss> || Concert News <http://spectralkimia.wordpress.com/>* On 22 November 2013 16:11, Miller Puckette <m...@ucsd.edu> wrote: > Aha and bngo! In effect - array random is only looking at the lower 1/2 > of the distribution. I made a stupid C data type fumble in the code. > > I recently tripped over a bug, too, in "text set" - will attempt to fix > them > both and issue an updated pd-0.45 in the next day or 2. > > Thanks for flagging this! > > Miller > > On Fri, Nov 22, 2013 at 03:56:54PM +0000, peiman khosravi wrote: > > Thanks. In this case I think something isn't right with [array random]. > > Using the same array, I get very different patterns with the two methods > > (see attached patch). The difference is obvious with a gaussian > > distribution, which looks skewed when generated with [array random]. > > > > Best, > > Peiman > > > > > > > > > > > > > > > > *www.peimankhosravi.co.uk <http://www.peimankhosravi.co.uk> || RSS Feed > > <http://peimankhosravi.co.uk/miscposts.rss> || Concert News > > <http://spectralkimia.wordpress.com/>* > > > > > > On 22 November 2013 15:48, Miller Puckette <m...@ucsd.edu> wrote: > > > > > There could be something wrong. But array_random_bang() (in x_array.c) > > > cooks up a pseudorandom number from 0 to 1 (I believe) and then calls > > > array_quantile_float() with it. That's exactly what connecting > random() > > > to array_quantile in a patch should be doing. > > > > > > cheers > > > Miller > > > > > > On Fri, Nov 22, 2013 at 09:38:59AM +0000, peiman khosravi wrote: > > > > Thank you very much. That does the trick. > > > > > > > > Though, [array random] doesn't seem to be working as I expected. Am I > > > right > > > > to think that it should produce the same result as [array quantile] > fed > > > > with uniformly distributed random values? If so I'm getting very > > > different > > > > results here. > > > > > > > > Thanks > > > > Peiman > > > > > > > > > > > > > > > > > > > > *www.peimankhosravi.co.uk <http://www.peimankhosravi.co.uk> || RSS > Feed > > > > <http://peimankhosravi.co.uk/miscposts.rss> || Concert News > > > > <http://spectralkimia.wordpress.com/>* > > > > > > > > > > > > On 22 November 2013 04:16, Miller Puckette <m...@ucsd.edu> wrote: > > > > > > > > > I think the patch is occasionally (once every 512 times on average) > > > sending > > > > > zero to "array quantile" which then outputs the index of the first > > > nonzero > > > > > number in the table -- in this case a point with probability about > > > 1e-45. > > > > > > > > > > Maybe try random 1e8 (or so) and divide by 1e8 to get a more > > > continuous, > > > > > less grainy random sample out of the array. > > > > > > > > > > cheers > > > > > Miller > > > > > > > > > > On Fri, Nov 22, 2013 at 01:51:19AM +0000, peiman khosravi wrote: > > > > > > Hello, > > > > > > > > > > > > Has anyone got any experience with [array quantile]? > > > > > > > > > > > > I'm getting some strange results and I've done everything I can > > > think of. > > > > > > > > > > > > I've attached a patch that should clarify the problem. Basically, > > > > > > sometimes, not always, [array quantile] returns some weird > numbers > > > that I > > > > > > can't explain. > > > > > > > > > > > > And a related issue: array random doesn't seem to be doing what > it > > > should > > > > > > be doing. It returns very different values, compared with > quantile > > > fed > > > > > with > > > > > > random values between 0 and 1. Again, there is an example of > what I > > > mean > > > > > in > > > > > > the attached patch. > > > > > > > > > > > > Thanks > > > > > > Peiman > > > > > > > > > > > > > > > > > > *www.peimankhosravi.co.uk <http://www.peimankhosravi.co.uk> || > RSS > > > Feed > > > > > > <http://peimankhosravi.co.uk/miscposts.rss> || Concert News > > > > > > <http://spectralkimia.wordpress.com/>* > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > Pd-list@iem.at mailing list > > > > > > UNSUBSCRIBE and account-management -> > > > > > http://lists.puredata.info/listinfo/pd-list > > > > > > > > > > > > > > > > > _______________________________________________ > > > > Pd-list@iem.at mailing list > > > > UNSUBSCRIBE and account-management -> > > > http://lists.puredata.info/listinfo/pd-list > > > > > > > > >
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