how can I delete some rows from a matrix

Hello,

I have a matrix with 3 col and many rows, I need to to create a new matrix with only odd romws numbers and delet the pair rows.

Someone have an idea how I can do this?

Thank you very much

Answer 1

[Star Strider]

This creates a new matrix with only the odd rows from the original matrix —

A = randi(9, 10,3)

A = 10x3

4 5 3 5 5 5 7 3 9 3 4 5 5 7 8 2 4 4 3 4 3 5 2 9 2 5 3 7 4 2

<mw-icon class=""></mw-icon>

<mw-icon class=""></mw-icon>

Anew = A(1:2:end,:)

Anew = 5x3

4 5 3 7 3 9 5 7 8 3 4 3 2 5 3

<mw-icon class=""></mw-icon>

<mw-icon class=""></mw-icon>

See the documentation section on Matrix Indexing for more information.

.