Creating sub-matrices using one matrix

Question

Rengin 2014-3-21

编辑： Thomas 2014-3-21

Let's say I have such a matrix:

A=[1 3;2 4;2 5;0 0;4 5;4 7;0 0;5 6;0 0 ] %I want to divide it into submatrices limiting with [0 0]

B=[1 3;2 4;2 5] C=[4 5;4 7] D=[5 6]

Thank you for your time!

Answer 1

Thomas 2014-3-21

编辑：Thomas 2014-3-21

Time to learn about indexing..

Rengin 2014-3-21

My question is beyond the extracting randomly rows and columns, meeting a condition to extract sub-matrices limted with [0,0]

Thomas 2014-3-21

编辑：Thomas 2014-3-21

You could easily find the [0 0] rows and use indexing to get the submatrices..

find(all(A==0,2))
ans =
          4.00
          7.00
          9.00

These are your zero rows .. now index appropriately to create your new sub matrices..