Reshape a matrix into vector using rows

How do I reshape a matrix into a vector where each row is positioned end to end?

%example 2d matrix
a = [1 2;3 4]

%this version reshapes columns not rows
b = reshape (a,[1,4])

The result I am looking for is:

Thanks for any assistance.

b = 1 2 3 4

Answer 1

[James Tursa]

b = reshape(a.',1,4);

MATLAB array memory is column-wise, so in memory the "a" elements are stored 1,3,2,4. The transpose puts the elements in memory in the order 1,2,3,4 so that the reshape works as you want.

[Mitchel Stewart]

Thanks for the quick response!