From: carl on
I have a vector that I would like to 'copy' into a matrix. By copy I mean
copy the vector n times and store each vector in a row in a matrix.
Currently I do:

v = [10 10 10];
A = ones(4,3);

for i=1 : 4
A(i,:) = v;
end

but is there a corresponding one-liner for this?

From: Jan Simon on
Dear Carl!

> v = [10 10 10];
> A = ones(4,3);
>
> for i=1 : 4
> A(i,:) = v;
> end

For this special problem, this works:
A = ones(4, 3) * 10
or
b = 10;
A = b(ones(4, 3))
etc.
If [v] has different values, call REPMAT:
A = repmat([10, 11, 8], 3, 1)
or
A = v(ones(1, 4), :)
(This is done inside REPMAT also. Look in its source code.)

Good luck, Jan