MATLAB: How to delete rows from the bottom of matrix

Question

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!!

Answer 1

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