Thread Subject: Merge the small matrixes into a big one

Dear All,

I was runing a loop in which every step generates a 3*1 vector as a result, and I need to store all these matrixes into a big one. Since the line and colum indices are mismatched with the result, the result doesn't comes out. Can anyone help me about it? Many thanks in advance?!

Below is my loop:
for i=1:n
    for j=1:m
    [mu(i,j),FVAL,EXITFLAG,OUTPUT,LAMBDA,GRAD,HESSIAN] = ...
    fmincon(@myfun,mu0,[],[],[],[],lbe,ube,[],options,m2,m3(i),m4(i),w(j));
    end
end

mu=mu; %% should be a (3*n,3*m) matrix

%% in each step of the loop, mu is a 3*1 vector

QZ

"Q Zhang" <silence_qunzi@hotmail.com> wrote in message <hck4k9$if$1@fred.mathworks.com>...
> Dear All,
>
> I was runing a loop in which every step generates a 3*1 vector as a result, and I need to store all these matrixes into a big one. Since the line and colum indices are mismatched with the result, the result doesn't comes out. Can anyone help me about it? Many thanks in advance?!
>
> Below is my loop:
> for i=1:n
> for j=1:m
> [mu(i,j),FVAL,EXITFLAG,OUTPUT,LAMBDA,GRAD,HESSIAN] = ...
> fmincon(@myfun,mu0,[],[],[],[],lbe,ube,[],options,m2,m3(i),m4(i),w(j));
> end
> end
>
> mu=mu; %% should be a (3*n,3*m) matrix
>
> %% in each step of the loop, mu is a 3*1 vector
>
> QZ

Here are two possible ways:
1. make a cell array, so that A{i,j}=X, where X is the 3x1 matrix.
2. Expand your indices, so that:
Aindex=i*3 Bindex=j
P(Aindex,Bindex)=X, where X is the 3x1 matrix
The resulantant matrix mu should be (3*n,m)

Hi Matt,

many thanks for your help :))