Re: help for least squares

[Torsten]

Maybe it is possible to rewrite the problem in such a way that arx ()
from the control package is doing the trick for you.

Torsten


On 22.06.2013 15:42, andrea console wrote:
> I have to solve, in least squares sense, a system of equations like:
> 
> b_1 = [a_1, 1]*[x;y];
> b_2 = [a_2, 1]*[x;y];
> b_3 = [a_3, 1]*[x;y];
> b_4 = [a_4, 1]*[x;y];
> ...
> b_n = [a_n, 1]*[x;y];
> 
> where b_i and a_i are sperimental values, thus affected by various
> sources of error.
> I know that 0<x<1 and nothing about y (apart that it should be quite small).
> How I can find the best solution that meets this conditions?
> thanks
> 
> 
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