problem with assigning in loop

Hi everybody, I want to assign every minrow to Ep but Ican't and only last row gets number and other rows gets zero.

What should I do?

this is my code; Thank you guys.

u=0;
for i=1:ne
      Le(i)=sqrt((Ex(i,1)-Ex(i,2))^2+(Ey(i,1)-Ey(i,2))^2+(Ez(i,1)-Ez(i,2))^2);
    if Le(i)~=0
      u=u+1;
  [ minval , minidx ] = min(available(available(:, 6) > Le(i)/20000, 6));
     minrow = available(minidx, :);
     Ep=zeros(u,6);
       Ep(u,:)=minrow;

      end
  end

Answer 1

[Matt J]

Get rid of the line

   Ep=zeros(u,6);

[Hamid]

it works, thank you.

[Matt J]

The code is still less than ideal, though. Why not compute Le with vectorized methods in advance of the loop so you can figure out how to pre-allocate Ep properly?

      Le=sqrt((Ex(:,1)-Ex(:,2))^2+(Ey(:,1)-Ey(:,2))^2+(Ez(:,1)-Ez(:,2))^2);
       Lenz=nonzeros(Le(1:ne));
       Ni=length(Lenz);

      Ep=zeros(Ni,6);

      for i=1:Ni

        [ minval , minidx ] = min(available(available(:, 6) > Lenz(i)/20000, 6));

         minrow = available(minidx, :);

        Ep(i,:)=minrow;

      end