how can I delete some rows from 2-D array?

I have a 2d array of 2x1500 i want to delete those rows which contain 0 in their first column. If someone knows how to do this plz tell me .

Answer 1

[Stephen23]

Where M is your matrix:

newmat = M(M(:,1)~=0,:)

Answer 2

[MathReallyWorks]

Hello Aniee,

I tried this, it works as per your requirement.

copy and paste this in command window:

 A=[ 0 2; 2 3; 0 5; 6 0; 7 8; 8 0; 9 1]

A =

     0     2
     2     3
     0     5
     6     0
     7     8
     8     0
     9     1

Now, copy and paste this in command window:

 %I have taken only 7 rows. You can do this for 1500 rows. It works exactly the same way.

 for i=1:7 
if A(i,1) == 0
A(i,:) = [];
end
end

Now type A in command window:

A =

     2     3
     6     0
     7     8
     8     0
     9     1

You can see the difference.

I hope it will be helpful.

[Aniee Shah]

thanks alot