Feeding a vector to a cost function
5 ビュー (過去 30 日間)
古いコメントを表示
Hello
I am wondering how I can feed a random (10,2) matrix to a cost function that get 2 inputs
My cost function is
function [f] = CostFunction(x,y)
f=4*(1-x).^2.*exp(-(x.^2)-(y+1).^2) -15*(x/5 - x.^3 - y.^5).*exp(-x.^2-y.^2) -(1/3)*exp(-(x+1).^2 - y.^2)-1*(2*(x-3).^7 -0.3*(y-4).^5+(y-3).^9).*exp(-(x-3).^2-(y-3).^2);
end
and I have created a random matrix like
vector=rand(10,2)
Now I want to be able to say something like this
CostFunction(Vector)
So I can get the value of Cost function for all those inputs
thank you
0 件のコメント
採用された回答
Andrei Bobrov
2011 年 12 月 12 日
function [f] = CostFunction(v)
x = v(:,1);
y = v(:,2);
f=4*(1-x).^2.*exp(-(x.^2)-(y+1).^2) -15*(x/5 - x.^3 - y.^5).*exp(-x.^2-y.^2) -(1/3)*exp(-(x+1).^2 - y.^2)-1*(2*(x-3).^7 -0.3*(y-4).^5+(y-3).^9).*exp(-(x-3).^2-(y-3).^2);
solution
vectors = rand(10,2);
out = CostFunction(vectors);
その他の回答 (2 件)
David Young
2011 年 12 月 12 日
How about
CostFunction(vector(:,1), vector(:,2))
though whether this is useful depends on what you want to achieve.
bym
2011 年 12 月 12 日
function f = CostFunction(vector) % brackets not necessary
x = vector(:,1);
y = vector(:,2);
f=4*(1-x).^2.*exp(-(x.^2)-(y+1).^2) -15*(x/5 - x.^3 - y.^5).*exp(-x.^2-y.^2) -(1/3)*exp(-(x+1).^2 - y.^2)-1*(2*(x-3).^7 -0.3*(y-4).^5+(y-3).^9).*exp(-(x-3).^2-(y-3).^2);
end
参考
カテゴリ
Help Center および File Exchange で Creating and Concatenating Matrices についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!