How to delete rows from the bottom of matrix

Hi everyone,

I have A = [1 2 3 4 5; 1 0 0 0 0; 1 2 3 4 5; 1 2 3 4 5; 1 0 0 0 0; 1 0 0 0 0 ]

I want to delete the rows that contain 0 in the bottom. Then I can’t use

condition=A == 0; 

A(condition,:)=[];

as it will delete row 2 as well. I just want to remove the rows in the bottom until the rows start to contain numbers. The number of rows in the bottom can change.

Any ideas? Thanks!!

[Jan]

The description is not clear. Does they mean, that you want to delete the last two rows only? All rows contain numbers, because 0 is a number also. And no row contains zeros only. Please edit the question and improve the description.

Answer 1

[Andrei Bobrov]

out = A(flipud(cumsum(flipud(all(A,2)))>0),:);

[Betina Isbak]

Thank you Andrei, it works perfect!