Reshape matrix with zero value

I have this variable formatted as following:

>> dist

dist =
           0    7.5000   15.0000   16.7705   21.2132   16.7705   15.0000    7.5000
      7.5000         0    7.5000   10.6066   16.7705   15.0000   16.7705   10.6066
     15.0000    7.5000         0    7.5000   15.0000   16.7705   21.2132   16.7705
     16.7705   10.6066    7.5000         0    7.5000   10.6066   16.7705   15.0000
     21.2132   16.7705   15.0000    7.5000         0    7.5000   15.0000   16.7705
     16.7705   15.0000   16.7705   10.6066    7.5000         0    7.5000   10.6066
     15.0000   16.7705   21.2132   16.7705   15.0000    7.5000         0    7.5000
      7.5000   10.6066   16.7705   15.0000   16.7705   10.6066    7.5000         0

I have just posted this question before but I'm not quite clear in the explatation. I want to obtain a 8x7 matrix because I want to eliminate all the 0 element rows by rows. How can I do this?

It should be a matrix like this:

                7.5000   15.0000   16.7705   21.2132   16.7705   15.0000    7.5000
                7.5000    7.5000   10.6066   16.7705   15.0000   16.7705   10.6066
               15.0000    7.5000    7.5000   15.0000   16.7705   21.2132   16.7705
and so on.

Is it possible to do this thing?

Answer 1

[Mischa Kim]

Looks like you just want to remove the diagonal elements. Check out this answer.

[Francesco]

Do you think that this code is good?

function Z=diagrem(X)
  N=size(X);
  Z=X;
  if N(1)~=N(2)
    error('Matrix is not square');
  end
  for x=1:N(1)
    Z(x,x)=0;
  end
  for y=1:N(1)-1
    Z(y,y+1)=0;
  end
  Z(Z==0)=[];
  Z=reshape(Z,N(1)-1,N(2)-1);

The problem is that MATLAB said:

??? function Z=diagrem(dist) | Error: Function definitions are not permitted at the prompt or in scripts.

[Francesco]

b=triu(a)
b=b(:,2:end)
c=tril(a)
c=c(:,1:end-1)
b+c

This code seemns to work fine. Do you think so?

Answer 2

[Andrei Bobrov]

n = size(dist1);
out = zeros(n-[1 0]);
out(:)=dist(~eye(n));
out = out';