non-uniform distribution

[Javier Montoya]

On Jun 12, 3:21 pm, Ian <hobso... at gmaiil.com> wrote:
> On 12/06/10 11:05, Javier Montoya wrote:> Dear all,
>
> > I need to generate a vector of random float numbers between [0,1] such
> > that their sum equals 1 and that are distributed non-uniformly.
> > Is there any python function that generates such a vector?
>
> > Best wishes
>
> Hi Javier,
>
> The answer to your question is "No", and the reason is that your
> requirement is impossible.
>
> Whatever distribution you choose - and you have not said what you
> require - will be altered by any scaling to meet the constraint that the
> total is 1.
>
> What exactly are you trying to achieve?
>
> Regards
>
> Ian

Hi Ian, I found that the Dirichlet distribution is suitable for my
case.
Regards