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
Antworten (2)
David Hill
am 19 Nov. 2020
Bearbeitet: David Hill
am 19 Nov. 2020
[i,j]=meshgrid(1:100,1:200);
TheOne=reshape(sum((Png1(:,i)-Png2(:,j)).^2),100,[]);
4 Kommentare
Master Blabla
am 19 Nov. 2020
David Hill
am 19 Nov. 2020
Does not get any simpler.
Master Blabla
am 19 Nov. 2020
David Hill
am 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
am 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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