lsqnonlin for 2 independent variables
12 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I want to find 2 variables(x,y -> complex number) with lsqnonlin function.
For example, I have 2 equations and 2 variable DATA.
Please check and advise my code. Thank you~
<DATA>
S11=1+i;
S21=2+2i;
<EQUATION>
1) S11=x*y+i*(x+y)
2) S21=x*y-i*(x^2+y^2)
---------------------
clear all;
clc;
close all;
S11=1+i;
S21=2+2i;
x0=0.1+0.1i;
y0=0.2+0.2i;
F = @(x) myfun_lsq(x,y,S11,S21)
x=lsqnonlin(F,x0)
y=lsqnonlin(F,y0)
function F = myfun_lsq(x,y,S11,S21)
Fc1=x*y+i*(x*y)-S11;
Fc2=x*y-i*(x^2+y^2)-S21;
F = [Fc1, Fc2];
end
0 commentaires
Réponse acceptée
Rik
le 29 Août 2021
You should merge x and y to a single variable (i.e. a 2 element vector). That way you can do this with a single call to lsqnonlin.
And you should remove that clc, clear all, close all. You don't need it and using it is a clear indication you don't know what you want to happen. Are you opening any figures? Do you really want to reduce the performance of several functions by wiping the optimization from memory with clear all?
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Whos dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!