problem with assigning in loop
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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
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Matt J
2014년 12월 13일
Get rid of the line
Ep=zeros(u,6);
댓글 수: 2
Matt J
2014년 12월 13일
편집: Matt J
2014년 12월 13일
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
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