How can I generate a matrix with the same vector in all the lines?

Hello,

I'd like to generate a matrix with the same vector n times. What I can choose. For example:

A= [ 1 2 3; 1 2 3; 1 2 3; .....n times......; 1 2 3]

Thank You

Answer 1

[Sean de Wolski]

A = repmat(1:3,n,1)

And to learn more:

doc repmat

Answer 2

[Evan]

Another option:

V = [1:3];
n = 4; % desired number of rows

M = ones(n,1) * V

Returns

 M = [1     2     3

      1     2     3

      1     2     3

      1     2     3]

Answer 3

[Matt Fig]

I think this is what REPMAT probably is doing behind the scenes:

V = 1:3;
M = V(ones(1,4),:)

Answer 4

[Walter Roberson]

t = 1:3;
A = t(ones(n,1), :);   %what repmat will do internally so faster than repmat

or

kron(1:3, ones(n,1));  %slower than repmat but kron() has some good uses