Reshaping a square matrix to a vector

Hi, I need to convert a 10 by 10 matrix into a 100 by 1 matrix by concatenating each column to the bottom of the preceding one. For example:

1  2  3  4 
5  6  7  8 
9  10 11 12 
13 14 15 16

into [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16]'

I've tried using reshape but I'm not getting what I want... moreover, I'm trying to use a for loop but can't seem to get it right.

Any help is much appreciated.

Thanks!

-E

Answer 1

[James Tursa]

This matches your words:

A = rand(10,10);
B = A(:); % one way
B = reshape(A,100,1); % another way

This matches your example:

B = reshape(A.',100,1);

Answer 2

[Esteban]

Woops, my fault... yes I meant:

[1 5 9 13 2 6 10 14 3 7 11 15 4 8 12 16]'

I tried it and it works.

Thanks for your help!

-E