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Questions about the elapsed time of Enumeration
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Hi,Everyone:
Today I want to show all possible result of 4 variables ,all of theirs range are from 1:0.1:10, 1 1 1 1 → 1 1 1 1.1 → 1 1 1 1.2 ... to 10 10 10 10.
I run my code,it has runs more than 17 hours,is it a acceptable phenomenon?
My code is following:
tic;
final=10;
Range=[1:0.1:final];
Total = length(Range)^4
weight=zeros(1,4);
cont=0;
for weight1=Range
for weight2=Range
for weight3=Range
for weight4=Range
if abs(weight1-0) > 1e-8
cont=cont+1;
weight(cont,:)=[weight1 weight2 weight3 weight4];
end
end
end
end
toc;
If my code should be adjusted, improved, please tell me your opinions,let's discuss.
Thanks for first !!
0 件のコメント
回答 (1 件)
Paridhi Yadav
2018 年 5 月 28 日
Hey in your code you are adding a row in weight every time the loop runs, instead of this while initializing weight give total number of rows like this weight = zeros(Total,4).
tic;
final=10;
Range=[1:0.1:final];
Total = length(Range)^4
weight=zeros(Total,4);
cont=0;
for weight1=Range
for weight2=Range
for weight3=Range
for weight4=Range
if abs(weight1-0) > 1e-8
cont=cont+1;
weight(cont,:)=[weight1 weight2 weight3 weight4];
end
end
end
end
end
toc;
1 件のコメント
この質問は閉じられています。
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