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## Re: Normal distribution random numbers

**From**: |
Arne Babenhauserheide |

**Subject**: |
Re: Normal distribution random numbers |

**Date**: |
Sat, 30 May 2020 23:30:48 +0200 |

**User-agent**: |
mu4e 1.4.4; emacs 26.3 |

Hi Zelphir,
Zelphir Kaltstahl <zelphirkaltstahl@posteo.de> writes:
>* Then I thought: How would I get normal distributed random numbers? I*
>* don't have a project or program in mind for this, but it struck me, that*
>* I do not know, how to get a normal distribution from a uniform*
>* distribution. So I dug into the matter …*
…
>* So my question is: Is there a good implementation in the Guile universe*
>* already? (Or a simple way to implement it?) I don't really need it right*
>* now, but I think this thing could be an obstacle for many people without*
>* serious math knowledge and it would be good to know, where to find it,*
>* should one have need for normal distributed random numbers.*
I don’t know how random:normal does it, just that I used it.
See https://www.gnu.org/software/guile/manual/html_node/Random.html
If you want to add defined covariance, you can use cholesky
decomposition:
https://hg.sr.ht/~arnebab/wisp/browse/examples/cholesky.scm?rev=91ec8dc32652
Best wishes,
Arne
--
Unpolitisch sein
heißt politisch sein
ohne es zu merken