R help - Apr 2012 - constrained optimization with vectors using the package alabama

Hello everyone,

I want to estimate a function for the relationship between the distance 
and the cross-correlation coefficients. This means that I have several 
pairs of distance and cross-correlation coefficients.
Hence, I have a function which includes two vectors with the same length 
(for distance and the cross-correlation coefficients) and the parameters 
x[1] and x[2] which I want to optimize.

I can easily apply auglag or constrOptim.nl from the alabama package for 
scalar values, but I did not find a way to include vectors.

Has anyone from you an idea?

thank you and best regards

Bj?rn

-- 
Bj?rn Guse
Dr. rer. nat.
Institut f?r Natur- und Ressourcenschutz
Abteilung Hydrologie und Wasserwirtschaft
Christian-Albrechts-Universit?t zu Kiel
Olshausenstr. 75
D-24118 Kiel

(+49) 0431-880-1224

www.hydrology.uni-kiel.de