Re: [R] generate random numbers subject to constraints

From: Alberto Monteiro <albmont_at_centroin.com.br>
Date: Wed, 26 Mar 2008 19:36:00 -0200

Ala' Jaouni wrote:

>

> I am trying to generate a set of random numbers that fulfill the
> following constraints:
>
> X1 + X2 + X3 + X4 = 1
>
> aX1 + bX2 + cX3 + dX4 = n
>
> where a, b, c, d, and n are known.
>
> Any function to do this?
>
You must give more information.

How are those numbers distributed? Are they normal? Positive?

If they can be anything, just generate X1, X2 and then compute X3, X4.

Alberto Monteiro



R-help_at_r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Wed 26 Mar 2008 - 21:51:34 GMT

Archive maintained by Robert King, hosted by the discipline of statistics at the University of Newcastle, Australia.
Archive generated by hypermail 2.2.0, at Wed 26 Mar 2008 - 22:30:26 GMT.

Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help. Please read the posting guide before posting to the list.

list of date sections of archive