Unequal array lengths of vectors

I have two vectors, x = 5,6,4,8,9 and y = 3, 2, 4

How would I create a 5x5 matrix or a 7x8 matrix using X and Y?

[Steven Lord]

Could you post the 5-by-2 or the 5-by-5 matrix that you want to create using those two vectors? I think I can guess what you want the 5-by-2 matrix to be, but I'm not sure what you want the 5-by-5 matrix to be.

[Lamba Opa]

Is there a way to combine these two arrays to create a 5x5 matrix or like a 7 by 8 matrix?

[Walter Roberson]

Mathematically there are an infinite number of ways to combine those two vectors to create a 5 x 5 or 7 x 8 matrix. It would help a lot of you could give an example of the 5 x 5 or 7 x 8 matrix you would want output.

[Image Analyst]

Jake, here's a matrix that will make a 5x5 matrix:

m = [...
x(1), x(2), x(3), x(4), x(5);...
y(1), y(2), y(3), y(1), y(2);...
x(1), x(2), x(3), x(4), x(5);...
y(2), y(3), y(1), y(1), y(2);...
x(1), x(2), x(3), x(4), x(5)]

How about that? It does everything you've told us so far (which isn't much). Will that work for you? If not, then give us the actual output you want.

[Steven Lord]

There are many ways to create a 5-by-5 matrix using x and y. Here are four examples.

x = [5, 6, 4, 8, 9];
y = [3, 2, 4];
v = [x, y];

% Ignore the vectors entirely
A = eye(5);

% Only use one of the arrays
B = repmat(x, 5, 1);

% Random selection of elements from the combined vector
C = v(randi(length(v), [5 5]));

% Keep replicating the elements in order until you have enough
n = ceil(25/length(v));
v2 = repmat(v, 1, n);
D = reshape(v2(1:25), 5, 5);

If you describe in more detail what you want the result to look like (A, B, C, D, or something else entirely -- and in that last case, please be specific) we can suggest ways to achieve that result.

[Lamba Opa]

The matrix I want to output for a 7 by 8, but it could be any matrix that uses those two vectors to create the matrix:

5 6 7 8 9 3 2 4

5 6 7 8 9 3 2 4

5 6 7 8 9 3 2 4

5 6 7 8 9 3 2 4

5 6 7 8 9 3 2 4

5 6 7 8 9 3 2 4

5 6 7 8 9 3 2 4

Answer 1

[Walter Roberson]

repmat([x,y], 7, 1)