hi everyone , i need help to make this , thank u

i hava two matrix 2x8

A=2*ones(2,8)
B=3*ones(2,8) 

what i need is to access on

1) on each column of matrix A so i need to get out a column vector 2x1 for 8 times to use it in a certain iteration

2) and then on each column of matrix B the same

all of this in the same iteration inside a loop

because if the two matrix are 1x8 it will be easy with two for i=1:8 and j=1:8 (in this case he gave me (1,1) and (1,2) ............ 1,8) then (2,1) ,(2,2) ................. (2,8)) but in this case i need to extract not an element but a column vector.

thank you

[madhan ravi]

in this case he gave me

who??, homework

[mina massoud]

iam trying to do somthing in matlab , but i can't do this

can u help me plz

thank u

[madhan ravi]

2*ones(2,1,8)

[mina massoud]

and how can i select from the second matrix B

[madhan ravi]

Do the same thing.

[mina massoud]

can i make an array matrix 2x1 where each element is a matrix 2x8

[madhan ravi]

What do you mean ?, illustrate with an example

[Image Analyst]

Example would be good. Plus explain what "access on" means. Do you simple mean

[rows, columns] = size(A);
for col = 1 : columns
    thisColA = A(:, col) % Extract column from A.
    thisColB = B(:, col) % Extract column from B.
    % Now do something .....
end

[mina massoud]

clear all

clc

A=2*ones(2,8)

B=3*ones(2,8)

for i=1:2

for j=1:8

C=

end

end

i want to creat a matrix C 2x1 that the

1) first elementi is a matrix that contain A (2x8)

2) second element is a matrix that contain B(2x8)

thank u

Answer 1

[madhan ravi]

No loops needed:

C=permute(reshape([A;B].',size(A,2),size(A,1),[]),[2,1,3]) % C(:,:,1) contains A and 2 B

[madhan ravi]

If you want to use a loop then:

[m,n]=size(A);
C = cell(m,1);
AB=[A;B];
for ii=1:2
   C{ii} = AB(ii*m-(m-1):ii*m,:);
end
% celldisp(C)

[mina massoud]

thank u very much

that what i need

u r the best

[mina massoud]

can i ask u another question

if i have two matrix and i want to chose the minimum value of each element from the two matrix so i want two make a comparisione for each element and take the smal value and put it in another matrix