How to store multiple column vector generated from a for loop?

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Mr. 206
Mr. 206 2018-11-12
编辑： Stephen23 2018-11-12
I have a function called func which returns A, B, C and D. This A, B, C, D each are 12 elements column vector. I am using this code
for delta = 0: 1: 40
[A,B,C,D] = func(delta);
end
Now after completing the for loop i will get 41 sets of A, B, C and D. How can i store them together?
I tried this
store = 0
for delta = 0: 1: 40
[A(store),B(store),C(store),D(store)] = func(delta);
end
But obviously there is an error like A(I) = X: X must have the same size as I. cause A is storing a 12 element column vector.

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Stephen23
Stephen23 2018-11-12
编辑：Stephen23 2018-11-12
N = 41;
A = nan(12,N);
B = nan(12,N);
C = nan(12,N);
D = nan(12,N);
for k = 1:N
[A(:,k),B(:,k),C(:,k),D(:,k)] = fun(k-1);
end
This will give four matrices with all of the output data.
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Mr. 206
Mr. 206 2018-11-12
编辑：Mr. 206 2018-11-12
Great! A slight mistake in my `func` file.
Thanks
Can you help a bit more?
After completing the procedure for A there is 12 by N matrix. How can i find out the smallest value in each row of that matrix and if the smallest value is found for which delta is responsible for the the smallest value?
So that i can find a matrix A which is a 12 by 1 matrix comprised of all the smallest value in each row. And another 12 by 1 matrix which is comprised of the delta value responsible for those smallest values.
I hope my Question is clear. Again thanks for the previous help.
Stephen23
Stephen23 2018-11-12
编辑：Stephen23 2018-11-12
"How can i find out the smallest value in each row of that matrix and if the smallest value is found for which delta is responsible for the the smallest value?"
[val,idx] = min(A,[],2)
delta(idx)

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KSSV
KSSV 2018-11-12
编辑：KSSV 2018-11-12
clc; clear all ;
iwant = zeros(4,12,40) ;
for delta = 1: 40
[A,B,C,D] = func(delta);
iwant(:,:,delta) = [A B C D] ;
end
Note that MATLAB index starts from 1 not zero.
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