How can I change the output of the code to scalar?

3 vues (au cours des 30 derniers jours)
Peter Mwangi
Peter Mwangi le 12 Fév 2018
I am trying to find the optimal values of a function @poweroptone but the GA tool doesn't complete the optimization because of the vector error. To be precise, this is the error that pops up `Error running optimization. Your fitness function must return a scalar value.` Here is the code:
function Pmax = poweroptone(Lt, R)
Lt =(0.01:0.0005:0.07);
R=(4:0.025:7);
Pmax =((1222.714521).*sqrt(Lt).*sqrt(0.03 + Lt./2).*sqrt(R./(R - 1)).*((sqrt(0.27) - 1.054.*sqrt(0.03 + Lt))./(sqrt(0.27).*(sqrt(0.03 - Lt)))));
end
The number of variables are two (2). How can I change the output of the code to scalar?
  4 commentaires
Peter Mwangi
Peter Mwangi le 12 Fév 2018
Thank you. Then what should I do to fix the problem?
Peter Mwangi
Peter Mwangi le 12 Fév 2018
I am trying to find the minimum value of Pmax for specific one value pf Lt and R

Connectez-vous pour commenter.

Réponse acceptée

Peter Mwangi
Peter Mwangi le 15 Fév 2018
Thank you for the feedback. I found the solution to the question. I first created the objective function
function P = power_one(x)
P=(1222.714521).*(sqrt(x(1))*sqrt(0.03 + (x(1))/2)*sqrt ((x(2))/((x(2) - 1)))*((sqrt(0.27) - 1.054 * sqrt(0.03 + x(1)))/(sqrt(0.27)*sqrt(0.03 + x(1)))));
end
And then I called it in the main function as follows;
Lb=[0.01 4];
Ub=[0.07 7];
fitn =@(x)power_one(x);
[x, fval]=ga(fitn,2, [], [], [], [], Lb, Ub);
I hope this will help someone in future. Thank you for the input.

Plus de réponses (0)

Produits

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by