Avoid for loops with if inside
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Hello everyone,
This is my code:
counter=1;
for i=1:size(A,1)
for j=counter:size(B,1)
if D(1,B(j,1))>0
if B(j,2)-A(i,2)<5
C(A(i,1),B(j,1))=C(A(i,1),B(j,1))+1;
D(1,B(j,1))=D(1,B(j,1))-1;
B(j,3)=1;
counter=j+1;
end
break;
end
end
end
A is an 100*3 matrix B is an 1000*3 matrix C is an 100*1000 matrix D is an 1*1000 matrix
So, can it be written by much less computational effort? Any comment is very appreciated! Thanks!
回答（1 个）
Doug Hull
2012-9-6
0 个投票
If it is working, what are you trying to accomplish by changing it. Have you run it through the profiler to find out that this is the bottleneck in your code slowing it down?
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