How to Pad an Array with extra zeros

Say I have an array, and I use to reshape function to divide it into equal sections. In the case that it cannot be divided into equal sections, how do I add zeros at the end to compensate? Say A=[1 8 1 9 1 4 1 5 0 4], and I want to divide it into sections of 4. 4 is not a set value.

[Shaquille Powell]

I'm new to this so I keep asking confusing questions. I want the end up with B=[1 8 1 8,1 4 1 5, 0 4 0 0]

Answer 1

[Stephen23]

Here are some simple methods that automatically adjusts to the length of the vector:

Method One: pad to end of vector:

>> A = [1,8,1,9,1,4,1,5,0,4];
>> N = 4;
>> B = A;
>> B(end+1:N*ceil(numel(B)/N)) = 0
B =
   1   8   1   9   1   4   1   5   0   4   0   0

Method Two: preallocate a vector of the right size:

>> A = [1,8,1,9,1,4,1,5,0,4];
>> N = 4;
>> B = zeros(1,N*ceil(numel(A)/N));
>> B(1:numel(A)) = A
B =
   1   8   1   9   1   4   1   5   0   4   0   0

Answer 2

[Andrei Bobrov]

A=[1 8 1 9 1 4 1 5 0 4];
n = 4;

B = reshape([A(:);zeros(mod(-numel(A),n),1)],n,[])';

Answer 3

[KSSV]

doc padarray

B = [A  zeros(1,2)]