Stretch row vector in matlab

Question

I need to double the size of my vector like this:

x=[1 1 0 1 0 0 1]

to

x=[1 1 1 1 0 0 1 1 0 0 0 0 1 1]

Is there a simple way to do this without a loop?

Answer 1

This can be done by:

x=[1 1 0 1 0 0 1];
y=[x;x];
x = y(:)';