Creating vector from a matrix

I want to create a column vector from every second element of the matrix

how can I do it?

Answer 1

[Chunru]

A = randn(3:4)

A = 3×4

-1.8158 0.3369 1.9546 0.1616 -0.6009 -0.4416 -0.0984 1.6391 3.4299 -0.4452 -0.7799 1.4173

v = A(1:2:end)'

v = 6×1

-1.8158 3.4299 -0.4416 1.9546 -0.7799 1.6391

[Berkay]

Yes That's what I want but how can I write this vector as column vector?

[Chunru]

Use " ' ". See above.