merge 1x4 vectors together ?

i've made a function that overwrites vector Z. I want to save every non-empty vector in a matrix A.

Z =

       []

Z =

      0     8     35     101

Z =

      125     50     750     20

Z =

       1     321     90     700

Z =

       []

Z =

       1     321     90     700 

Z =

       57     75     0     1,2

Z =

       []

i have tried to solve it with

if size(Z) ~= [0 0]
A(1:4 , :) = Z

but it doesn't work.

Answer 1

[Walter Roberson]

A(end+1,:) = v;