How do I repeat a row a certain number of times?

I have a vector of numbers. i.e [ 1 2 3 4] I want to repeat that specific vector a certain number of times, to make a matrix of x rows. It's just the first row repeating itself x times. So it would be [ 1 2 3 4; 1 2 3 4; 1 2 3 4] If x was 3. However I cannot use repmat nor use an iteration

[jgg]

Why can't you use those functions? Is this homework? The trick is pretty easy:

 v = [1:5];
 v = v(ones(1,1000),:);

where x = 1000 here.

Answer 1

[sam0037]

Hi,

This can be also done using the REPELEM command as follows:

v = [1:4];
repelem(v,[3],[1])

Follow the link below to know more about this function:

http://www.mathworks.com/help/matlab/ref/repelem.html

[Madhav Malhotra]

@sam0037Could you please explain how the second and third arguments in your function work?

The documentation doesn't provide an example of what happens when you put one-dimensional vectors as arguments to repelem.

[Jesse Ivers]

They don't have to be vectors, simple ints accomplish the same goal. Not sure why they are bracketed in that example.