Vectorize two for loops
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How to vectorize this function:
for i=1:100
for j=1:200
TheOne(i,j) = i+j;
end
end
Risposte (2)
David Hill
il 19 Nov 2020
Modificato: David Hill
il 19 Nov 2020
[i,j]=meshgrid(1:100,1:200);
TheOne=reshape(sum((Png1(:,i)-Png2(:,j)).^2),100,[]);
4 Commenti
Master Blabla
il 19 Nov 2020
David Hill
il 19 Nov 2020
Does not get any simpler.
Master Blabla
il 19 Nov 2020
David Hill
il 19 Nov 2020
Made a mistake. Try this.
[i,j]=meshgrid(1:100,1:200);
TheOne=reshape(sum((Png1(:,i)-Png2(:,j)).^2),200,[])';
CHENG QIAN LAI
il 24 Nov 2020
[i,j]=ndgrid(1:100,1:200);
% 1 2 3 . . . 200
%---------------------------
% i= 1 1 1 . . . 1 | 1
% 2 2 2 . . . 2 | 2
% 3 3 3 . . . 3 | 3
% . . . | .
% . . . | .
% . . . | .
% 100 100 100 . . . 100 | 100
%---------------------------
% j= 1 2 3 . . . 200 | 1
% 1 2 3 . . . 200 | 2
% 1 2 3 . . . 200 | 3
% . . . | .
% . . . | .
% . . . | .
% 1 2 3 . . . 200 | 100
TheOne = i+j;
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