Reshape column vector

Question

Hello I\'m working with MATLAB and I have a \"z\" column vector that has dimension of (9680 x 1). I want to reshape it in order to have an array \"z\" of di

Answer 1

Matlab stores the matrix values in column major format (this is important during reshape). Since you want row major, you need to do

z = reshape(z, [220 44]).';

i.e. transpose afterwards.

Answer 2

I'd use Andreas H.'s approach.

As an alternative, there's a vec2mat function in the Communications Toolbox that does just that, and even fills missing values if needed:

>> x = 11:18;
>> vec2mat(x,4) %// no padding needed
ans =
    11    12    13    14
    15    16    17    18
>> vec2mat(x,5) %// padding needed; with 0 by default
ans =
    11    12    13    14    15
    16    17    18     0     0
>> vec2mat(x,5,-1) %// padding needed; with specified value
ans =
    11    12    13    14    15
    16    17    18    -1    -1