I have a vector (x) with 25*1. I want to separate this vector to 5 vectors with 5*1 and then do multiplication with a matrix (A) and then calculate sum then cost function is obtained.
Unfortualey that vector (x) is my variable and when I use loop with
for I got error because I want to index the variable that is defined after cvx_begin .what do you suggest for defining cost function in this situation?
x : is 25 by 1
y : is 5 by 1
xi : is 5 by 1
matrix A is 5 by 5
A(:,i): i'th coulmn of matrix A
cost function : minimize (y-sum(diag(xi)*A(:,i))) %% summation is done over all i
variable x(25,1 ) complex
minimize(sum_square_abs(y-diag(f2)*A) );% % this is my cost function
for solving this problem I used CVX command for saving variable and then I write loop command it worked but I do not know this is correct or not ? because I need index of variable.
some posts related to this topic. in simple way how can I index the variable after define them for making cost function I hope this help .(with simple example)