[R] newby trying to solve a system
olivier.eterradossi at ema.fr
Wed Apr 20 18:15:42 CEST 2005
being very new to R, (as well as lazy and not too smart !) I have some
problems (and get lost in the docs) trying to write something to find
the 9 values (A1,B1,C1,A2,B2,C2....C3) which are solutions of a 12
equations system of the form :
> x1-(A1/(A1+B1+C1)) = 0
> y1-(B1/(A1+B1+C1))= 0
> z1-(C1/(A1+B1+C1)) = 0
> 3 same equations with subscript 2
> 3 same equations with subscript 3
> A1*K+A2*L+A3*M = S
> B1*K+B2*L+B3*M = T
>C1*K+C2*L+C3*M = U
where x1,y1,.....y3,z3, K,L,M,S,T and U are known.
Can any of you give me some light to begin ? I guess something already
exists but can't find it...
Thanks a lot for any hint.
Hélioparc, 2 av. P. Angot, F-64053 PAU CEDEX 9
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