Picking arrays from a matrix based on a condition

Hi,

I have a matrix:

3 3 3 3 3 2 2 2 4 4

4 4 4 4 4 2 2 4 4 4

5 5 5 5 5 2 2 4 4 4

6 6 6 6 6 2 2 2 4 4

Suppose the first five elements in any row are represented by A (e.g., always the same value. for instance 3 in the first row) while the last five elements always include only two numbers i.e. B (equal to 2, in the first row) and C (equal to 4, in the first row)

How would I be able to pick those rows that hold: B<A<C. For instance, the below rows in the above case:

3 3 3 3 3 2 2 4 4 4

4 4 4 4 4 2 2 4 4 4

Many thanks.

Answer 1

[Bruno Luong]

M=[3 3 3 3 3 2 2 2 4 4;
4 4 4 4 4 2 2 4 4 4;
5 5 5 5 5 2 2 4 4 4;
6 6 6 6 6 2 2 2 4 4]

[A,B,C]=deal(M(:,1),M(:,6),M(:,9));

M(B<=A & A<=C,:) % Not same criteria stated in your question

Gives:

ans =

       3     3     3     3     3     2     2     2     4     4
       4     4     4     4     4     2     2     4     4     4

[Fayyaz]

this has solved my issue. many thanks