finding the N highest values in a vector

Question

fafz1203 2016-10-20

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/308294-finding-the-n-highest-values-in-a-vector

编辑： Matt J 2016-10-20

i have a vector matrix with a (1*10,000) dimension. I want to find the 10 highest values from this matrix with their respective indices. I can't use sorting because I will lose the original indices of the numbers after sorting. Can anyone help?

Let me know if you have any questions.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Matt J 2016-10-20

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/308294-finding-the-n-highest-values-in-a-vector#answer_239937

编辑：Matt J 2016-10-20

I can't use sorting because I will lose the original indices of the numbers after sorting.

You needn't lose them because [A,J]=SORT(...) will give you the original indices in J. Nevertheless, a more efficient approach than sorting would be to use this FEX subsmission,

http://www.mathworks.com/matlabcentral/fileexchange/23576-min-max-selection